Using negative lengths allows you to say "copy everything but the last three characters," : substr « String « PHP






  1. PHP
  2. String
  3. substr

Using negative lengths allows you to say "copy everything but the last three characters,"

 
<?
    $string = "Goodbye, Perl!"
    $a = substr($string, 5);

    $b = substr($string, 5, 5);

    $c = substr($string, 0, -1);

    $d = substr($string, -5);

    $e = substr($string, -5, 4);

    $e will be set to "Perl"

    $f = substr($string, -5, -4);
?>








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