$match_expression = '/<a href="look.php\?id=(.*)" title="Look page: (.*)">(.*)<\/A>/';
$radompgr = preg_match_all($match_expression,$q2,$match, PREG_SET_ORDER);
if($radompgr == TRUE){echo "found $radompgr<br>";}else{echo "not found $radompgr<br>";} //found
for ($i = 0; $i < count($match); $i++) {
$mathcas = $match[$i][1];
$radom = preg_match('/[0-9a-z]{39,41}/',$mathcas,$matches2);
if($radom == TRUE){
$match11 = $matches2[1];
echo "found".$i.": ".$match11."";}else{echo"".$i."not found :(<br>";}
} // "found0", but don`t show $match11 variable.
显示“found0”,但不要显示$ match11。如何做$ match 11来显示? 返回:
注意:未定义的偏移量:第75行的C:\ xampp \ htdocs \ page.php中的1 found0: 注意:未定义的偏移量:第75行的C:\ xampp \ htdocs \ copy \ page.php中的1 ,招致: 注意:未定义的偏移量:第75行的C:\ xampp \ htdocs \ copy \ page.php中的1 found2:
对不起,如果我的英语不完美,我不是本地人。 :) 谢谢您的帮助。
答案 0 :(得分:3)
您忘了将()括在preg_match()中:
$match_expression = '/<a href="look.php\?id=(.*)" title="Look page: (.*)">(.*)<\/A>/';
$radompgr = preg_match_all($match_expression, $q2, $match, PREG_SET_ORDER);
if ($radompgr >= 1)
{
echo 'found ' . $radompgr;
for ($i = 0; $i < count($match); $i++)
{
$mathcas = $match[$i][1];
$radom = preg_match('/([0-9a-z]{39,41})/', $mathcas, $matches2);
if ($radom >= 1)
{
$na = $matches2[1];
echo 'found' . $i . ': ' . $na;
}
else
{
echo $i . 'not found';
}
}
}
else
{
echo 'not found ' . $radompgr;
}