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; $len = strlen( $str ); for ( $i = 0; $i < $len; $i++ ) { //0x80 = 128 $ord = ord( $str[$i] ); if ( $ord & 0x80 ) { $ord <<= 1; while ( $ord & 0x80 ) { $i++; $ord <<= 1; } $c++; } else { $c++; } } return $c; }
This function check if an e-mail address is valid or not. function valid_email($email) { return preg_match('/^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/', $email);...
If you have a list of items (for example)......
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; } ...
This way useful for create mixed arguments function. function foo() { $args = func_get_args(); print_r($args); } foo(1, 1256, 6, 17); //mixed ... -------------------Out-...
