未知修饰符 'g' PHP 正则表达式错误 [英] Unknown modifier 'g' PHP regex error
问题描述
我的模式是:/(productimages\/)(\w*)(\/v\/)(\w*)(.jpg)/g
和数据:http://gskinner.com/RegExr/?2ujor
和php代码:
$regexp = '/(productimages\/)(\w*)(\/v\/)(\w*)(.jpg)/g';if(preg_match("$regexp", $input, $matches, PREG_SET_ORDER)) {for($i=0;$i<14;$i++){echo '--->'.$i.'-->'.$matches[0][$i];}}
<块引用>
结果:警告:preg_match() [function.preg-match]:未知修饰符'g'
$regexp = '/(productimages\/)(\w*)(\/v\/)(\w*)(.jpg)/g';if(preg_match_all("$regexp", $input, $matches, PREG_SET_ORDER)) {for($i=0;$i<14;$i++){echo '--->'.$i.'-->'.$matches[0][$i];}}
<块引用>
结果:警告:preg_match_all() [function.preg-match-all]:未知修饰符'g'
此解决方案无效!:|未知修饰符 'g' in...";在 PHP 中使用 preg_match 时?
我该怎么办?
切换到 preg_match_all
是正确的,现在您需要做的就是从正则表达式中删除g":
$regexp = '/(productimages\/)(\w*)(\/v\/)(\w*)(.jpg)/';
my pattern is: /(productimages\/)(\w*)(\/v\/)(\w*)(.jpg)/g
and data: http://gskinner.com/RegExr/?2ujor
and php code:
$regexp = ' /(productimages\/)(\w*)(\/v\/)(\w*)(.jpg)/g';
if(preg_match("$regexp", $input, $matches, PREG_SET_ORDER)) {
for($i=0;$i<14;$i++){
echo '--->'.$i.'-->'.$matches[0][$i];
}}
result: Warning: preg_match() [function.preg-match]: Unknown modifier 'g'
$regexp = ' /(productimages\/)(\w*)(\/v\/)(\w*)(.jpg)/g';
if(preg_match_all("$regexp", $input, $matches, PREG_SET_ORDER)) {
for($i=0;$i<14;$i++){
echo '--->'.$i.'-->'.$matches[0][$i];
}}
result: Warning: preg_match_all() [function.preg-match-all]: Unknown modifier 'g'
this solution not worked! :| "Unknown modifier 'g' in..." when using preg_match in PHP?
what should i do?
Switching to preg_match_all
was correct, now all you need to do is remove the 'g' from your regex:
$regexp = '/(productimages\/)(\w*)(\/v\/)(\w*)(.jpg)/';
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