i have a string
$str = "this is [start] my string [end] at this moment";
i need to get the content within [start]
and [end]
.
when i use
$result = preg_match('/\[start\].+\[end\]/',$str, $m);
it mutches [start] my string [end]
, but i need 开发者_如何学Pythonto get only my string
(without spaces).
sure i can make another preg_replace and delete them, but i think there must be more elegant solution.
Thanks
Use captured groups.
$result = preg_match('/\[start\](.+)\[end\]/',$str, $m);
$matched = $m[1];
(Note that your regex will fail if there are multiple [start]
/[end]
groups (needs lazy quantifier .+?
), or nested [start]
/[end]
groups (use recursive pattern).)
If you don't want the spaces, you could avoid matching it in the regex:
$result = preg_match('/\[start\]\s*(.+?)\s*\[end\]/',$str, $m);
$matched = $m[1];
or just call trim()
.
$result = preg_match('/\[start\](.+)\[end\]/',$str, $m);
$matched = trim($m[1]);
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