Is_file () function user guide in PHP, is_file User Guide _ PHP Tutorial

Is_file () function user guide in PHP and is_file User Guide. In PHP, the is_file () function User Guide and the is_file user guide is_file () function checks whether the specified file name is a normal file. Is_file () function user guide in is_file-Tellswhetherthefilenameisaregularfile PHP, is_file User Guide

The is_file () function checks whether the specified file name is a normal file.

Is_file-Tells whether the filename is a regular file

Usage:
Bool is_file (string $ filename) $ file is a required parameter
Returns TRUE if the object exists and is normal.

Let's take a look at Example 1:

<?phpvar_dump(is_file('a_file.txt')) . "\n";var_dump(is_file('/usr/bin/')) . "\n";?>

The above example will output:
Bool (true)
Bool (false)

Example 2:

<?phpfunction isfile($file){return preg_match('/^[^.^:^?^-][^:^?]*.(?i)' . getexts() . '$/',$file);//first character cannot be . : ? - subsequent characters can't be a : ?//then a . character and must end with one of your extentions//getexts() can be replaced with your extentions pattern}function getexts(){//list acceptable file extensions herereturn '(app|avi|doc|docx|exe|ico|mid|midi|mov|mp3|mpg|mpeg|pdf|psd|qt|ra|ram|rm|rtf|txt|wav|word|xls)';}echo isfile('/Users/YourUserName/Sites/index.html');?>

Example 3:

<?phpfunction deletefolder($path){if ($handle=opendir($path)){while (false!==($file=readdir($handle))){if ($file<>"." AND $file<>".."){if (is_file($path.'/'.$file)){@unlink($path.'/'.$file);}if (is_dir($path.'/'.$file)){deletefolder($path.'/'.$file);@rmdir($path.'/'.$file);}}}}}?>

This function deletes all files and folders.

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Usage Guide for functions () and is_file usage guide the is_file () function checks whether the specified file name is a normal file. Is_file-Tells whether the filename is a regular file...