The SplFileInfo::isWritable() function is an inbuilt function of Standard PHP Library (SPL) in PHP which is used to check the file is writable or not.
Syntax:
bool SplFileInfo::isWritable( void )
Parameters: This function does not accept any parameter.
Return values: This function returns true on success or false on failure.
Note: Set the file permission before executing the program.
Below Programs illustrate the SplFileInfo::isWritable() function in PHP:
Program 1:
<?php // PHP Program to illustrate // Splfileinfo::isWritable() function $file = new SplFileInfo("gfg.txt"); $gfg = $file->isWritable(); // Print result var_dump($gfg); echo "</br>"; $file = new SplFileInfo(__FILE__); $gfg = $file->isWritable(); // Print result var_dump($gfg); ?> |
Output:
bool(false) bool(true)
Program 2:
<?php // PHP program to use array to check // multiple files $GFG = array( "dummy.php", "gfg_code.cpp", "html/", "frame.php"); foreach ($GFG as &$file_name) { // Create new SplFile Object $file = new SplFileInfo($file_name); $gfg = $file->isWritable(); // Print result var_dump($gfg); echo "</br>"; } ?> |
Output:
bool(true) bool(false) bool(true) bool(false)
Reference: http://php.net/manual/en/splfileinfo.iswritable.php
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