PHPize Online / SQLize Online  /  SQLtest Online

A A A
Share      Blog   Popular
Copy Format Clear
Copy Clear
Copy Format Clear
<?php function h( $string ) : ?string { if ( is_string( $string ) === false ) return '_1'; $length = mb_strlen( $string ); if ( is_int( $length ) === false ) return '_2'; if ( $length <= 0 ) return '_3'; return $string; } var_dump( h( '' ) );
Show:  
Copy Clear