\b and \B, equate to "On a word boundary" and "Not on a word boundary," respectively. : Regular Expressions « String « PHP






  1. PHP
  2. String
  3. Regular Expressions

\b and \B, equate to "On a word boundary" and "Not on a word boundary," respectively.

 
<?
    $string = "this is a test!";

    if (preg_match("/oo\b/i", $string)) {
    }

    preg_match("/oo\B/i", $string);

    preg_match("/no\b/", "he said 'no!'");

    preg_match("/royalty\b/", "royalty-free photograph");
?>








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