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How to use testClass method of dateInterval class
Best Atoum code snippet using dateInterval.testClass
scheduled_task_test.php
Source:scheduled_task_test.php 
1<?php2// This file is part of Moodle - http://moodle.org/3//4// Moodle is free software: you can redistribute it and/or modify5// it under the terms of the GNU General Public License as published by6// the Free Software Foundation, either version 3 of the License, or7// (at your option) any later version.8//9// Moodle is distributed in the hope that it will be useful,10// but WITHOUT ANY WARRANTY; without even the implied warranty of11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the12// GNU General Public License for more details.13//14// You should have received a copy of the GNU General Public License15// along with Moodle. If not, see <http://www.gnu.org/licenses/>.16/**17 * This file contains the unittests for scheduled tasks.18 *19 * @package core20 * @category phpunit21 * @copyright 2013 Damyon Wiese22 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later23 */24defined('MOODLE_INTERNAL') || die();25require_once(__DIR__ . '/fixtures/task_fixtures.php');26/**27 * Test class for scheduled task.28 *29 * @package core30 * @category task31 * @copyright 2013 Damyon Wiese32 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later33 */34class core_scheduled_task_testcase extends advanced_testcase {35 /**36 * Test the cron scheduling method37 */38 public function test_eval_cron_field() {39 $testclass = new \core\task\scheduled_test_task();40 $this->assertEquals(20, count($testclass->eval_cron_field('*/3', 0, 59)));41 $this->assertEquals(31, count($testclass->eval_cron_field('1,*/2', 0, 59)));42 $this->assertEquals(15, count($testclass->eval_cron_field('1-10,5-15', 0, 59)));43 $this->assertEquals(13, count($testclass->eval_cron_field('1-10,5-15/2', 0, 59)));44 $this->assertEquals(3, count($testclass->eval_cron_field('1,2,3,1,2,3', 0, 59)));45 $this->assertEquals(1, count($testclass->eval_cron_field('-1,10,80', 0, 59)));46 }47 public function test_get_next_scheduled_time() {48 global $CFG;49 $this->resetAfterTest();50 $this->setTimezone('Europe/London');51 // Let's specify the hour we are going to use initially for the test.52 // (note that we pick 01:00 that is tricky for Europe/London, because53 // it's exactly the Daylight Saving Time Begins hour.54 $testhour = 1;55 // Test job run at 1 am.56 $testclass = new \core\task\scheduled_test_task();57 // All fields default to '*'.58 $testclass->set_hour($testhour);59 $testclass->set_minute('0');60 // Next valid time should be 1am of the next day.61 $nexttime = $testclass->get_next_scheduled_time();62 $oneamdate = new DateTime('now', new DateTimeZone('Europe/London'));63 $oneamdate->setTime($testhour, 0, 0);64 // Once a year (currently last Sunday of March), when changing to Daylight Saving Time,65 // Europe/London 01:00 simply doesn't exists because, exactly at 01:00 the clock66 // is advanced by one hour and becomes 02:00. When that happens, the DateInterval67 // calculations cannot be to advance by 1 day, but by one less hour. That is exactly when68 // the next scheduled run will happen (next day 01:00).69 $isdaylightsaving = false;70 if ($testhour < (int)$oneamdate->format('H')) {71 $isdaylightsaving = true;72 }73 // Make it 1 am tomorrow if the time is after 1am.74 if ($oneamdate->getTimestamp() < time()) {75 $oneamdate->add(new DateInterval('P1D'));76 if ($isdaylightsaving) {77 // If today is Europe/London Daylight Saving Time Begins, expectation is 1 less hour.78 $oneamdate->sub(new DateInterval('PT1H'));79 }80 }81 $oneam = $oneamdate->getTimestamp();82 $this->assertEquals($oneam, $nexttime, 'Next scheduled time is 1am.');83 // Disabled flag does not affect next time.84 $testclass->set_disabled(true);85 $nexttime = $testclass->get_next_scheduled_time();86 $this->assertEquals($oneam, $nexttime, 'Next scheduled time is 1am.');87 // Now test for job run every 10 minutes.88 $testclass = new \core\task\scheduled_test_task();89 // All fields default to '*'.90 $testclass->set_minute('*/10');91 // Next valid time should be next 10 minute boundary.92 $nexttime = $testclass->get_next_scheduled_time();93 $minutes = ((intval(date('i') / 10))+1) * 10;94 $nexttenminutes = mktime(date('H'), $minutes, 0);95 $this->assertEquals($nexttenminutes, $nexttime, 'Next scheduled time is in 10 minutes.');96 // Disabled flag does not affect next time.97 $testclass->set_disabled(true);98 $nexttime = $testclass->get_next_scheduled_time();99 $this->assertEquals($nexttenminutes, $nexttime, 'Next scheduled time is in 10 minutes.');100 // Test hourly job executed on Sundays only.101 $testclass = new \core\task\scheduled_test_task();102 $testclass->set_minute('0');103 $testclass->set_day_of_week('7');104 $nexttime = $testclass->get_next_scheduled_time();105 $this->assertEquals(7, date('N', $nexttime));106 $this->assertEquals(0, date('i', $nexttime));107 // Test monthly job108 $testclass = new \core\task\scheduled_test_task();109 $testclass->set_minute('32');110 $testclass->set_hour('0');111 $testclass->set_day('1');112 $nexttime = $testclass->get_next_scheduled_time();113 $this->assertEquals(32, date('i', $nexttime));114 $this->assertEquals(0, date('G', $nexttime));115 $this->assertEquals(1, date('j', $nexttime));116 }117 public function test_timezones() {118 global $CFG, $USER;119 // The timezones used in this test are chosen because they do not use DST - that would break the test.120 $this->resetAfterTest();121 $this->setTimezone('Asia/Kabul');122 $testclass = new \core\task\scheduled_test_task();123 // Scheduled tasks should always use servertime - so this is 03:30 GMT.124 $testclass->set_hour('1');125 $testclass->set_minute('0');126 // Next valid time should be 1am of the next day.127 $nexttime = $testclass->get_next_scheduled_time();128 // GMT+05:45.129 $USER->timezone = 'Asia/Kathmandu';130 $userdate = userdate($nexttime);131 // Should be displayed in user timezone.132 // I used http://www.timeanddate.com/worldclock/fixedtime.html?msg=Moodle+Test&iso=20160502T01&p1=113133 // setting my location to Kathmandu to verify this time.134 $this->assertContains('2:15 AM', core_text::strtoupper($userdate));135 }136 public function test_reset_scheduled_tasks_for_component_customised(): void {137 $this->resetAfterTest(true);138 $tasks = \core\task\manager::load_scheduled_tasks_for_component('moodle');139 // Customise a task.140 $task = reset($tasks);141 $task->set_minute('1');142 $task->set_hour('2');143 $task->set_month('3');144 $task->set_day_of_week('4');145 $task->set_day('5');146 $task->set_customised('1');147 \core\task\manager::configure_scheduled_task($task);148 // Now call reset.149 \core\task\manager::reset_scheduled_tasks_for_component('moodle');150 // Fetch the task again.151 $taskafterreset = \core\task\manager::get_scheduled_task(get_class($task));152 // The task should still be the same as the customised.153 $this->assertTaskEquals($task, $taskafterreset);154 }155 public function test_reset_scheduled_tasks_for_component_deleted(): void {156 global $DB;157 $this->resetAfterTest(true);158 // Delete a task to simulate the fact that its new.159 $tasklist = \core\task\manager::load_scheduled_tasks_for_component('moodle');160 // Note: This test must use a task which does not use any random values.161 $task = \core\task\manager::get_scheduled_task(core\task\session_cleanup_task::class);162 $DB->delete_records('task_scheduled', array('classname' => '\\' . trim(get_class($task), '\\')));163 $this->assertFalse(\core\task\manager::get_scheduled_task(core\task\session_cleanup_task::class));164 // Now call reset on all the tasks.165 \core\task\manager::reset_scheduled_tasks_for_component('moodle');166 // Assert that the second task was added back.167 $taskafterreset = \core\task\manager::get_scheduled_task(core\task\session_cleanup_task::class);168 $this->assertNotFalse($taskafterreset);169 $this->assertTaskEquals($task, $taskafterreset);170 $this->assertCount(count($tasklist), \core\task\manager::load_scheduled_tasks_for_component('moodle'));171 }172 public function test_reset_scheduled_tasks_for_component_changed_in_source(): void {173 $this->resetAfterTest(true);174 // Delete a task to simulate the fact that its new.175 // Note: This test must use a task which does not use any random values.176 $task = \core\task\manager::get_scheduled_task(core\task\session_cleanup_task::class);177 // Get a copy of the task before maing changes for later comparison.178 $taskbeforechange = \core\task\manager::get_scheduled_task(core\task\session_cleanup_task::class);179 // Edit a task to simulate a change in its definition (as if it was not customised).180 $task->set_minute('1');181 $task->set_hour('2');182 $task->set_month('3');183 $task->set_day_of_week('4');184 $task->set_day('5');185 \core\task\manager::configure_scheduled_task($task);186 // Fetch the task out for comparison.187 $taskafterchange = \core\task\manager::get_scheduled_task(core\task\session_cleanup_task::class);188 // The task should now be different to the original.189 $this->assertTaskNotEquals($taskbeforechange, $taskafterchange);190 // Now call reset.191 \core\task\manager::reset_scheduled_tasks_for_component('moodle');192 // Fetch the task again.193 $taskafterreset = \core\task\manager::get_scheduled_task(core\task\session_cleanup_task::class);194 // The task should now be the same as the original.195 $this->assertTaskEquals($taskbeforechange, $taskafterreset);196 }197 /**198 * Tests that the reset function deletes old tasks.199 */200 public function test_reset_scheduled_tasks_for_component_delete() {201 global $DB;202 $this->resetAfterTest(true);203 $count = $DB->count_records('task_scheduled', array('component' => 'moodle'));204 $allcount = $DB->count_records('task_scheduled');205 $task = new \core\task\scheduled_test_task();206 $task->set_component('moodle');207 $record = \core\task\manager::record_from_scheduled_task($task);208 $DB->insert_record('task_scheduled', $record);209 $this->assertTrue($DB->record_exists('task_scheduled', array('classname' => '\core\task\scheduled_test_task',210 'component' => 'moodle')));211 $task = new \core\task\scheduled_test2_task();212 $task->set_component('moodle');213 $record = \core\task\manager::record_from_scheduled_task($task);214 $DB->insert_record('task_scheduled', $record);215 $this->assertTrue($DB->record_exists('task_scheduled', array('classname' => '\core\task\scheduled_test2_task',216 'component' => 'moodle')));217 $aftercount = $DB->count_records('task_scheduled', array('component' => 'moodle'));218 $afterallcount = $DB->count_records('task_scheduled');219 $this->assertEquals($count + 2, $aftercount);220 $this->assertEquals($allcount + 2, $afterallcount);221 // Now check that the right things were deleted.222 \core\task\manager::reset_scheduled_tasks_for_component('moodle');223 $this->assertEquals($count, $DB->count_records('task_scheduled', array('component' => 'moodle')));224 $this->assertEquals($allcount, $DB->count_records('task_scheduled'));225 $this->assertFalse($DB->record_exists('task_scheduled', array('classname' => '\core\task\scheduled_test2_task',226 'component' => 'moodle')));227 $this->assertFalse($DB->record_exists('task_scheduled', array('classname' => '\core\task\scheduled_test_task',228 'component' => 'moodle')));229 }230 public function test_get_next_scheduled_task() {231 global $DB;232 $this->resetAfterTest(true);233 // Delete all existing scheduled tasks.234 $DB->delete_records('task_scheduled');235 // Add a scheduled task.236 // A task that runs once per hour.237 $record = new stdClass();238 $record->blocking = true;239 $record->minute = '0';240 $record->hour = '0';241 $record->dayofweek = '*';242 $record->day = '*';243 $record->month = '*';244 $record->component = 'test_scheduled_task';245 $record->classname = '\core\task\scheduled_test_task';246 $DB->insert_record('task_scheduled', $record);247 // And another one to test failures.248 $record->classname = '\core\task\scheduled_test2_task';249 $DB->insert_record('task_scheduled', $record);250 // And disabled test.251 $record->classname = '\core\task\scheduled_test3_task';252 $record->disabled = 1;253 $DB->insert_record('task_scheduled', $record);254 $now = time();255 // Should get handed the first task.256 $task = \core\task\manager::get_next_scheduled_task($now);257 $this->assertInstanceOf('\core\task\scheduled_test_task', $task);258 $task->execute();259 \core\task\manager::scheduled_task_complete($task);260 // Should get handed the second task.261 $task = \core\task\manager::get_next_scheduled_task($now);262 $this->assertInstanceOf('\core\task\scheduled_test2_task', $task);263 $task->execute();264 \core\task\manager::scheduled_task_failed($task);265 // Should not get any task.266 $task = \core\task\manager::get_next_scheduled_task($now);267 $this->assertNull($task);268 // Should get the second task (retry after delay).269 $task = \core\task\manager::get_next_scheduled_task($now + 120);270 $this->assertInstanceOf('\core\task\scheduled_test2_task', $task);271 $task->execute();272 \core\task\manager::scheduled_task_complete($task);273 // Should not get any task.274 $task = \core\task\manager::get_next_scheduled_task($now);275 $this->assertNull($task);276 // Check ordering.277 $DB->delete_records('task_scheduled');278 $record->lastruntime = 2;279 $record->disabled = 0;280 $record->classname = '\core\task\scheduled_test_task';281 $DB->insert_record('task_scheduled', $record);282 $record->lastruntime = 1;283 $record->classname = '\core\task\scheduled_test2_task';284 $DB->insert_record('task_scheduled', $record);285 // Should get handed the second task.286 $task = \core\task\manager::get_next_scheduled_task($now);287 $this->assertInstanceOf('\core\task\scheduled_test2_task', $task);288 $task->execute();289 \core\task\manager::scheduled_task_complete($task);290 // Should get handed the first task.291 $task = \core\task\manager::get_next_scheduled_task($now);292 $this->assertInstanceOf('\core\task\scheduled_test_task', $task);293 $task->execute();294 \core\task\manager::scheduled_task_complete($task);295 // Should not get any task.296 $task = \core\task\manager::get_next_scheduled_task($now);297 $this->assertNull($task);298 }299 public function test_get_broken_scheduled_task() {300 global $DB;301 $this->resetAfterTest(true);302 // Delete all existing scheduled tasks.303 $DB->delete_records('task_scheduled');304 // Add a scheduled task.305 // A broken task that runs all the time.306 $record = new stdClass();307 $record->blocking = true;308 $record->minute = '*';309 $record->hour = '*';310 $record->dayofweek = '*';311 $record->day = '*';312 $record->month = '*';313 $record->component = 'test_scheduled_task';314 $record->classname = '\core\task\scheduled_test_task_broken';315 $DB->insert_record('task_scheduled', $record);316 $now = time();317 // Should not get any task.318 $task = \core\task\manager::get_next_scheduled_task($now);319 $this->assertDebuggingCalled();320 $this->assertNull($task);321 }322 /**323 * Tests the use of 'R' syntax in time fields of tasks to get324 * tasks be configured with a non-uniform time.325 */326 public function test_random_time_specification() {327 // Testing non-deterministic things in a unit test is not really328 // wise, so we just test the values have changed within allowed bounds.329 $testclass = new \core\task\scheduled_test_task();330 // The test task defaults to '*'.331 $this->assertInternalType('string', $testclass->get_minute());332 $this->assertInternalType('string', $testclass->get_hour());333 // Set a random value.334 $testclass->set_minute('R');335 $testclass->set_hour('R');336 $testclass->set_day_of_week('R');337 // Verify the minute has changed within allowed bounds.338 $minute = $testclass->get_minute();339 $this->assertInternalType('int', $minute);340 $this->assertGreaterThanOrEqual(0, $minute);341 $this->assertLessThanOrEqual(59, $minute);342 // Verify the hour has changed within allowed bounds.343 $hour = $testclass->get_hour();344 $this->assertInternalType('int', $hour);345 $this->assertGreaterThanOrEqual(0, $hour);346 $this->assertLessThanOrEqual(23, $hour);347 // Verify the dayofweek has changed within allowed bounds.348 $dayofweek = $testclass->get_day_of_week();349 $this->assertInternalType('int', $dayofweek);350 $this->assertGreaterThanOrEqual(0, $dayofweek);351 $this->assertLessThanOrEqual(6, $dayofweek);352 }353 /**354 * Test that the file_temp_cleanup_task removes directories and355 * files as expected.356 */357 public function test_file_temp_cleanup_task() {358 global $CFG;359 $backuptempdir = make_backup_temp_directory('');360 // Create directories.361 $dir = $backuptempdir . DIRECTORY_SEPARATOR . 'backup01' . DIRECTORY_SEPARATOR . 'courses';362 mkdir($dir, 0777, true);363 // Create files to be checked and then deleted.364 $file01 = $dir . DIRECTORY_SEPARATOR . 'sections.xml';365 file_put_contents($file01, 'test data 001');366 $file02 = $dir . DIRECTORY_SEPARATOR . 'modules.xml';367 file_put_contents($file02, 'test data 002');368 // Change the time modified for the first file, to a time that will be deleted by the task (greater than seven days).369 touch($file01, time() - (8 * 24 * 3600));370 $task = \core\task\manager::get_scheduled_task('\\core\\task\\file_temp_cleanup_task');371 $this->assertInstanceOf('\core\task\file_temp_cleanup_task', $task);372 $task->execute();373 // Scan the directory. Only modules.xml should be left.374 $filesarray = scandir($dir);375 $this->assertEquals('modules.xml', $filesarray[2]);376 $this->assertEquals(3, count($filesarray));377 // Change the time modified on modules.xml.378 touch($file02, time() - (8 * 24 * 3600));379 // Change the time modified on the courses directory.380 touch($backuptempdir . DIRECTORY_SEPARATOR . 'backup01' . DIRECTORY_SEPARATOR .381 'courses', time() - (8 * 24 * 3600));382 // Run the scheduled task to remove the file and directory.383 $task->execute();384 $filesarray = scandir($backuptempdir . DIRECTORY_SEPARATOR . 'backup01');385 // There should only be two items in the array, '.' and '..'.386 $this->assertEquals(2, count($filesarray));387 // Change the time modified on all of the files and directories.388 $dir = new \RecursiveDirectoryIterator($CFG->tempdir);389 // Show all child nodes prior to their parent.390 $iter = new \RecursiveIteratorIterator($dir, \RecursiveIteratorIterator::CHILD_FIRST);391 for ($iter->rewind(); $iter->valid(); $iter->next()) {392 if ($iter->isDir() && !$iter->isDot()) {393 $node = $iter->getRealPath();394 touch($node, time() - (8 * 24 * 3600));395 }396 }397 // Run the scheduled task again to remove all of the files and directories.398 $task->execute();399 $filesarray = scandir($CFG->tempdir);400 // All of the files and directories should be deleted.401 // There should only be three items in the array, '.', '..' and '.htaccess'.402 $this->assertEquals([ '.', '..', '.htaccess' ], $filesarray);403 }404 /**405 * Test that the function to clear the fail delay from a task works correctly.406 */407 public function test_clear_fail_delay() {408 $this->resetAfterTest();409 // Get an example task to use for testing. Task is set to run every minute by default.410 $taskname = '\core\task\send_new_user_passwords_task';411 // Pretend task started running and then failed 3 times.412 $before = time();413 $cronlockfactory = \core\lock\lock_config::get_lock_factory('cron');414 for ($i = 0; $i < 3; $i ++) {415 $task = \core\task\manager::get_scheduled_task($taskname);416 $lock = $cronlockfactory->get_lock('\\' . get_class($task), 10);417 $task->set_lock($lock);418 \core\task\manager::scheduled_task_failed($task);419 }420 // Confirm task is now delayed by several minutes.421 $task = \core\task\manager::get_scheduled_task($taskname);422 $this->assertEquals(240, $task->get_fail_delay());423 $this->assertGreaterThan($before + 230, $task->get_next_run_time());424 // Clear the fail delay and re-get the task.425 \core\task\manager::clear_fail_delay($task);426 $task = \core\task\manager::get_scheduled_task($taskname);427 // There should be no delay and it should run within the next minute.428 $this->assertEquals(0, $task->get_fail_delay());429 $this->assertLessThan($before + 70, $task->get_next_run_time());430 }431 /**432 * Assert that the specified tasks are equal.433 *434 * @param \core\task\task_base $task435 * @param \core\task\task_base $comparisontask436 */437 public function assertTaskEquals(\core\task\task_base $task, \core\task\task_base $comparisontask): void {438 // Convert both to an object.439 $task = \core\task\manager::record_from_scheduled_task($task);440 $comparisontask = \core\task\manager::record_from_scheduled_task($comparisontask);441 // Reset the nextruntime field as it is intentionally dynamic.442 $task->nextruntime = null;443 $comparisontask->nextruntime = null;444 $args = array_merge(445 [446 $task,447 $comparisontask,448 ],449 array_slice(func_get_args(), 2)450 );451 call_user_func_array([$this, 'assertEquals'], $args);452 }453 /**454 * Assert that the specified tasks are not equal.455 *456 * @param \core\task\task_base $task457 * @param \core\task\task_base $comparisontask458 */459 public function assertTaskNotEquals(\core\task\task_base $task, \core\task\task_base $comparisontask): void {460 // Convert both to an object.461 $task = \core\task\manager::record_from_scheduled_task($task);462 $comparisontask = \core\task\manager::record_from_scheduled_task($comparisontask);463 // Reset the nextruntime field as it is intentionally dynamic.464 $task->nextruntime = null;465 $comparisontask->nextruntime = null;466 $args = array_merge(467 [468 $task,469 $comparisontask,470 ],471 array_slice(func_get_args(), 2)472 );473 call_user_func_array([$this, 'assertNotEquals'], $args);474 }475 /**476 * Assert that the lastruntime column holds an original value after a scheduled task is reset.477 */478 public function test_reset_scheduled_tasks_for_component_keeps_original_lastruntime(): void {479 global $DB;480 $this->resetAfterTest(true);481 // Set lastruntime for the scheduled task.482 $DB->set_field('task_scheduled', 'lastruntime', 123456789, ['classname' => '\core\task\session_cleanup_task']);483 // Reset the task.484 \core\task\manager::reset_scheduled_tasks_for_component('moodle');485 // Fetch the task again.486 $taskafterreset = \core\task\manager::get_scheduled_task(core\task\session_cleanup_task::class);487 // Confirm, that lastruntime is still in place.488 $this->assertEquals(123456789, $taskafterreset->get_last_run_time());489 }490}...
function.php
Source:function.php
1<?php2/**3 * Created by PhpStorm.4 * User: wushangkun5 * Date: 2020/12/266 * Time: 6:29 PM7 */8/// 1. å½æ°ä¸çå½æ°9//10// PHP ä¸çææå½æ°åç±»é½å
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éå®ä¹å·²å£°æçå½æ°ã13function foo()14{15 function bar()16 {17 echo "I don't exist until foo() is called.\n";18 }19}20/* ç°å¨è¿ä¸è½è°ç¨bar()å½æ°ï¼å 为å®è¿ä¸åå¨ */21foo();22/* ç°å¨å¯ä»¥è°ç¨bar()å½æ°äºï¼å 为foo()å½æ°23 çæ§è¡ä½¿å¾bar()å½æ°å为已å®ä¹çå½æ° */24bar();25function recursion($a)26{27 if ($a < 20) {28 echo "$a\n";29 recursion($a + 1);30 }31}32recursion(10); # 10 11 12 13 14 15 16 17 18 1933echo "<br/>";34// 1.1 åå½æ°ä¼ éæ°ç»35// é»è®¤æ
åµä¸ï¼å½æ°åæ°éè¿ å¼ä¼ é36function takes_array($input)37{38 echo "$input[0] + $input[1] = ", $input[0]+$input[1]; # 23 + 24 = 4739}40takes_array([23, 24]);41echo "<br/>";42// 1.2 éè¿å¼ç¨ä¼ éåæ°43function add_some_extras(&$p)44{45 // é»è®¤æ
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é¡»éè¿å¼ç¨ä¼ éåæ°ã47 $p .= 'and something extra.';48}49$str = 'This is a string, ';50add_some_extras($str);51echo $str; # æå°åº 'This is a string, and something extra.'52echo "<br/>";53// 1.3 å¨å½æ°ä¸ä½¿ç¨é»è®¤åæ°54function makecoffee($type = "cappuccino")55{56 return "Making a cup of $type.\n";57}58echo makecoffee(); # Making a cup of cappuccino.59echo makecoffee(null); # Making a cup of .60echo makecoffee("espresso"); # Making a cup of espresso.61echo "<br/>";62// 1.4 PHP è¿å
许使ç¨æ°ç» array åç¹æ®ç±»å null ä½ä¸ºé»è®¤åæ°63// é»è®¤å¼å¿
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å½æ°è°ç¨çã64function makeCoffe2($types = ["cappuccino"], $coffeMaker = NULL)65{66 $device = is_null($coffeMaker) ? "hands" : $coffeMaker;67 return "Making a cup of ".join(", ", $types)." with $device. \n";68}69echo makeCoffe2(); # Making a cup of cappuccino with hands.70echo makeCoffe2(["cappuccino", "lavazza"] , "teapot"); # Making a cup of cappuccino, lavazza with teapot.71/// 注æï¼ æ³¨æå½ä½¿ç¨é»è®¤åæ°æ¶ï¼ä»»ä½é»è®¤åæ°å¿
é¡»æ¾å¨ä»»ä½éé»è®¤åæ°çå³ä¾§!!!!!72function makeyogurt1($type = "acidophilus", $flavour) # é误åæ³â73{74 return "Making a bowl of $type $flavour.\n";75}76function makeyogurt2($flavour, $type = "acidophilus") # æ£ç¡®åæ³â
77{78 return "Making a bowl of $type $flavour.\n";79}80/// 2. å¯åæ°éçåæ°å表81// 2.1 ä½¿ç¨ ... æ¥è®¿é®åéåæ°82function sum(...$numbers)83{84 $total = 0;85 foreach ($numbers as $n)86 {87 $total += $n;88 }89 return $total;90}91echo sum(1, 2, 3, 4, 5); # 1592// 2.2 ä½¿ç¨ ... æ¥ä¼ éåæ°93function add($a, $b)94{95 return $a + $b;96}97// å¯ä»¥ä½¿ç¨ ... è¯æ³æ¥ä¼ é array æ Traversable å为åæ°å°å½æ°ä¸ï¼98echo add(...[1, 2]); # 399$a = [1, 2];100echo add(...$a); # 3101echo "<br/>";102// å¨ ... åæå®æ£å¸¸çä½ç½®åæ°103// å¯ä»¥å¨ ... æ è®°åæ·»å ä¸ä¸ª ç±»å声æã104function total_intervals($unit, DateInterval ...$intervals)105{106 $time = 0;107 foreach ($intervals as $interval)108 {109 $time += $interval->$unit;110 }111 return $time;112}113$a = DateInterval::createFromDateString('P1D');114$b = DateInterval::createFromDateString('P2D');115echo total_intervals('d', $a, $b).' days'; # 0 days116/// 3. å¯åæ°éçåæ°å表117// ä»å½æ°è¿åä¸ä¸ªå¼ç¨118function &scalar_ref_inc_x(&$x)119{120 $x++;121 return $x;122}123$x = 1;124$x2 =& scalar_ref_inc_x($x);125scalar_ref_inc_x($x2);126print $x . ', ' . $x2 . "\n"; # 3, 3127/// 4. å¯åå½æ°128// 4.1 å¦æä¸ä¸ªåéååæåæ¬å·ï¼PHP å°å¯»æ¾ä¸åéçå¼ååçå½æ°ï¼å¹¶ä¸å°è¯æ§è¡å®ã129function echoit($string)130{131 echo $string;132}133$func = 'echoit';134$func('test'); // This calls echoit()135// 4.2 Variable æ¹æ³åéæå±æ§ç¤ºä¾136// å½è°ç¨éææ¹æ³æ¶ï¼å½æ°è°ç¨è¦æ¯éæå±æ§ä¼å
ï¼137class TestClass138{139 static $variable = 'static property';140 static function Variable()141 {142 echo 'Method Variable called';143 }144 static function callOtherFunc()145 {146 $func = 'TestClass::funcToCall';147 $func();148 }149}150echo TestClass::$variable; # æå°åº static property151$variable = "Variable";152// 注æï¼ è¿å°è°ç¨TestClass->Variableï¼ï¼ï¼è¯»åæ¤ä½ç¨åä¸ç$Variableã153TestClass::$variable(); # æå°åº Method Variable called...
testClass
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1$dateInterval = new DateInterval();2$dateInterval->testClass();3$dateInterval = new DateInterval();4$dateInterval->testClass();5Your name to display (optional):6Your name to display (optional):7$dateInterval = new DateInterval();8$dateInterval->testClass();9$dateInterval = new DateInterval();10$dateInterval->testClass();11namespace first;12$dateInterval = new DateInterval();13$dateInterval->testClass();14namespace second;15$dateInterval = new DateInterval();16$dateInterval->testClass();17Your name to display (optio
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