How to use truncate method of vfsStreamFile class

Best VfsStream code snippet using vfsStreamFile.truncate

vfsStreamFile.php

Source: vfsStreamFile.php Github

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...121 $this->seek(0, SEEK_END);122 $this->lastAccessed = time();123 }124 /​**125 * open file and truncate content126 *127 * @since 0.9128 */​129 public function openWithTruncate()130 {131 $this->open();132 $this->content = '';133 $time = time();134 $this->lastAccessed = $time;135 $this->lastModified = $time;136 }137 /​**138 * reads the given amount of bytes from content139 *140 * Using this method changes the time when the file was last accessed.141 *142 * @param int $count143 * @return string144 */​145 public function read($count)146 {147 $data = substr($this->content, $this->bytes_read, $count);148 $this->bytes_read += $count;149 $this->lastAccessed = time();150 return $data;151 }152 /​**153 * returns the content until its end from current offset154 *155 * Using this method changes the time when the file was last accessed.156 *157 * @return string158 */​159 public function readUntilEnd()160 {161 $this->lastAccessed = time();162 return substr($this->content, $this->bytes_read);163 }164 /​**165 * writes an amount of data166 *167 * Using this method changes the time when the file was last modified.168 *169 * @param string $data170 * @return amount of written bytes171 */​172 public function write($data)173 {174 $dataLen = strlen($data);175 $this->content = substr($this->content, 0, $this->bytes_read) . $data . substr($this->content, $this->bytes_read + $dataLen);176 $this->bytes_read += $dataLen;177 $this->lastModified = time();178 return $dataLen;179 }180 /​**181 * Truncates a file to a given length182 *183 * @param int $size length to truncate file to184 * @return bool185 * @since 1.1.0186 */​187 public function truncate($size) {188 if ($size > $this->size()) {189 /​/​ Pad with null-chars if we're "truncating up"190 $this->setContent($this->getContent() . str_repeat("\0", $size - $this->size()));191 } else {192 $this->setContent(substr($this->getContent(), 0, $size));193 }194 $this->lastModified = time();195 return true;196 }197 /​**198 * checks whether pointer is at end of file199 *200 * @return bool201 */​...

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truncate

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1$root = vfsStreamWrapper::getRoot();2$root->getChild('dir1')->getChild('file1.txt')->truncate();3$root = vfsStreamWrapper::getRoot();4$root->getChild('dir1')->getChild('file1.txt')->write('some content');5$root = vfsStreamWrapper::getRoot();6$root->getChild('dir1')->getChild('file1.txt')->write('some content');7$root = vfsStreamWrapper::getRoot();8$root->getChild('dir1')->getChild('file1.txt')->append('some content');9$root = vfsStreamWrapper::getRoot();10$root->getChild('dir1')->getChild('file1.txt')->append('some content');11$root = vfsStreamWrapper::getRoot();12$root->getChild('dir1')->getChild('file1.txt')->append('some content');13$root = vfsStreamWrapper::getRoot();14$root->getChild('dir1')->getChild('file1.txt')->append('some content');15$root = vfsStreamWrapper::getRoot();16$root->getChild('dir1')->getChild('file1.txt')->append('some content');17$root = vfsStreamWrapper::getRoot();18$root->getChild('dir1')->getChild('file1.txt')->append('some content');19$root = vfsStreamWrapper::getRoot();20$root->getChild('dir1')->getChild('file1.txt')->append('some content');21$root = vfsStreamWrapper::getRoot();22$root->getChild('dir1')->getChild('file1.txt')->append('some content');

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truncate

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1require_once 'vfsStream/​vfsStream.php';2vfsStreamWrapper::register();3vfsStreamWrapper::setRoot(new vfsStreamDirectory('root'));4$file = vfsStream::newFile('test.txt')->at(vfsStreamWrapper::getRoot());5$file->setContent('this is a test file');6$file->truncate(0);7if($file->getContent() == '')8 echo 'file is empty';9 echo 'file is not empty';

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truncate

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1$root = vfsStream::setup();2$file = new vfsStreamFile('test.txt');3$root->addChild($file);4$file->truncate();5$root = vfsStream::setup();6$file = new vfsStreamFile('test.txt');7$root->addChild($file);8$file->setContent('Hello World');9$fp = $file->getFilePointer();

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truncate

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1$myFile->truncate();2$size = $myFile->size();3echo $size;4$size = $myFile->size();5echo $size;6$contents = $myFile->contents();7echo $contents;8$contents = $myFile->contents();9echo $contents;10$size = $myFile->size();11echo $size;12$size = $myFile->size();13echo $size;14$myFile->truncate();15$contents = $myFile->contents();16echo $contents;17$contents = $myFile->contents();18echo $contents;19$size = $myFile->size();20echo $size;21$myFile->truncate();22$myFile->truncate();23$size = $myFile->size();24echo $size;25$contents = $myFile->contents();26echo $contents;27$contents = $myFile->contents();28echo $contents;29$myFile->truncate();30$size = $myFile->size();31echo $size;32$size = $myFile->size();33echo $size;34$contents = $myFile->contents();

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truncate

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1$root->getChild('file')->truncate();2$root->getChild('file')->append('new content');3$root->getChild('file')->size();4$root->getChild('file')->at(0);5$root->getChild('file')->content();6$root->getChild('file')->time();7$root->getChild('file')->lastAccessed();8$root->getChild('file')->lastModified();9$root->getChild('file')->chmod(777);10$root->getChild('file')->chgrp(777);11$root->getChild('file')->chown(777);12$root->getChild('file')->isReadable();13$root->getChild('file')->isWritable();14$root->getChild('file')->isExecutable();15$root->getChild('file')->isLink();16$root->getChild('file')->getLinkTarget();17$root->getChild('file')->getPermissions();18$root->getChild('file')->getOwner();19$root->getChild('file')->getGroup();20$root->getChild('file')->getType();21$root->getChild('file')->getSize();22$root->getChild('file')->isFile();

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truncate

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1$root->getChild('file.txt')->truncate();2echo $root->getChild('file.txt')->getContent();3$root->getChild('file.txt')->append(' World!');4echo $root->getChild('file.txt')->getContent();5$root->getChild('file.txt')->prepend('Hello ');6echo $root->getChild('file.txt')->getContent();7$root->getChild('file.txt')->chmod(0755);8echo $root->getChild('file.txt')->getPermissions();9$root->getChild('file.txt')->chown('root');10echo $root->getChild('file.txt')->getOwner();11$root->getChild('file.txt')->chgrp('root');12echo $root->getChild('file.txt')->getGroup();13$root->getChild('file.txt')->chown('root')->chgrp('root');14echo $root->getChild('file.txt')->getOwner().' '.$root->getChild('file.txt')->getGroup();15$root->getChild('file.txt')->touch();16echo $root->getChild('file.txt')->lastModified();17$root->getChild('file.txt')->lastAccessed();18echo $root->getChild('file.txt')->lastAccessed();

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