- preg_match: documentation ( source)
<?php
if (preg_match("(.)\1{9,}", "aaaaaaaaaaaaaaa")) {
echo "A match was found.";
} else {
echo "A match was not found.";
}
if (preg_match("/\bweb\b/i", "aaa")) {
echo "A match was found.";
} else {
echo "A match was not found.";
}
?>