我有这样的文字
"From: [your-name] <[your-email]>
Subject: [your-subject]
Message Body: [your-message]"
我想提取[ ]所包含的字符串。
:
your-name
your-email
your-subject
your-message
如何使用preg_match_all()做到这一点
从输入中获取所有匹配项:
$text = 'From: [your-name] <[your-email]> Subject: [your-subject] Message Body: [your-message]';
preg_match_all("/'[[^']]*']/", $text, $matches);
var_dump($matches[0]);
将输出:
{ [0]=> string(11) "[your-name]" [1]=> string(12) "[your-email]" [2]=> string(14) "[your-subject]" [3]=> string(14) "[your-message]" }
如果您不希望包含括号:
$text = 'From: [your-name] <[your-email]> Subject: [your-subject] Message Body: [your-message]';
preg_match_all("/'[([^']]*)']/", $text, $matches);
var_dump($matches[1]);
将输出:
{ [0]=> string(9) "your-name" [1]=> string(10) "your-email" [2]=> string(12) "your-subject" [3]=> string(12) "your-message" }
$text = 'From: [your-name] <[your-email]> Subject: [your-subject] Message Body: [your-message]';
// the pattern is very simple in your case, because you want to get the
// content that is enclosed inside square brackets []
// 's means any whitespace character, where 'S means any non whitespace character
$pattern = '/'[['s'S]+?']/';
//the created $matches variable is an array containing all the matched data
preg_match_all($pattern,$text,$matches);
// print out the matches array
print_r($matches);