Random string generator. Optionally, you can give it a desired string length.
function rnd_string($len = 24) { $str = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"; $strlen = strlen($str) - 1; $result = ''; for ($i = 0; $i < $len; $i++) $result .= $str[rand(0, $strlen)]; return $result; } echo rnd_string();
This function check if an e-mail address is valid or not. function valid_email($email) { return preg_match('/^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/', $email);...
The best way to determine the character count of a UTF8 string. function strlen_utf8( $str ) { return mb_strlen( $str, 'UTF-8' ); } //or... function strlen_utf8( $str ) { $c = 0;...
If you want to delete everything from folder (including subfolders) use this function. function removeDir( $dir ) { if ( is_dir( $dir ) ) { $objects = scandir( $dir ); foreach ( $o...
If file exists then delete the file. function delFile( $file_name ) { if ( file_exists( $file_name ) ) // Does '$file_name' exist { unlink( $file_name ); return true; } ...
