Programming PHP

For example:
preg_match('/y.*e$/', 'Sylvie'); // returns true
preg_match('/y(.*)e$/', Sylvie', $m); // $m is array('Sylvie', 'lvi')
While there’s an eregi( ) function to match case-insensitively, there’s no preg_
matchi( ) function. Instead, use the i flag on the pattern:
preg_match('y.*e$/i', 'SyLvIe'); // returns true
The preg_match_all( ) function repeatedly matches from where the last match
ended, until no more matches can be made:
$found = preg_match_all(pattern, string, matches [, order ]);
The order value, either PREG_PATTERN_ORDER or PREG_SET_ORDER, determines the layout
of matches. We’ll look at both, using this code as a guide:
$string =