PHP determines whether a file or directory (folder) exists _php tutorial

PHP determines whether a file or directory (folder) exists

PHP Library has a function to determine whether a file or directory exists, file_exists determine whether the file exists, Is_dir determine whether the directory (folder) exists. Specific examples are as follows:

$file = ' index.php '; $dir = ' www.phpernote.com/wwwroot/'; if (file_exists ($dir. $file)) {echo ' file '. $file. ' Existence ';} Else{echo ' file '. $file. ' not present ';} if (Is_dir ($dir)) {    echo ' directory '. $dir. ' exist ';} else{    echo ' directory '. $dir. ' not present ';}

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