Regex matches and returns a line break.

Regex matches and returns a line break. This post was last edited by liuser_cn at 20:51:54

Regular PHP JavaScript HTML

$pattern_Title =   "/target=\"\_blank\"\>.*\<\/a\>s+\<\/h4\>/is";//。。。。

Catch this 'php ';

PHP

Reply to discussion (solution)

\ S is written as s

$pattern_Title =   "/target=\"\_blank\"\>.*\<\/a\>\s+\<\/h4\>/is";

In fact, this is better.
$ Pattern_Title = "/target = \" \ _ blank \ "\>. * \ <\/a \> [\ s \ S] * \ <\/h4 \>/is ";//....

\ S is written as s

$pattern_Title =   "/target=\"\_blank\"\>.*\<\/a\>\s+\<\/h4\>/is";

This is probably not the reason. \ s is frequently used.


$ Pattern_Title = "/target = \" \ _ blank \ "\> \ s * (\ S *) \ s * \ <\/a \> \ s * \ <\/h4 \>/I "; // title
Simplify high-quality regular expressions --!

In fact, this is better.
$ Pattern_Title = "/target = \" \ _ blank \ "\>. * \ <\/a \> [\ s \ S] * \ <\/h4 \>/is ";//....

Q: After modifier s is used, it will not be able to catch low. for example, if I want to end it here, what should I use to declare it?

$s =<<< TXT                     PHP                         TXT;$pattern_Title = '#target="_blank">(.*)\s+#is';preg_match_all($pattern_Title, $s, $r);print_r($r);

Array
(
[0] => Array
(
[0] => target = "_ blank">

PHP



)

[1] => Array
(
[0] =>

PHP

)

)

$pattern_Title = '#target="_blank">\s*(.*)\s*#is';preg_match_all($pattern_Title, $s, $r);print_r($r);

Array
(
[0] => Array
(
[0] => target = "_ blank">

PHP

)

[1] => Array
(
[0] => PHP

)

)

In fact, this is better.
$ Pattern_Title = "/target = \" \ _ blank \ "\>. * \ <\/a \> [\ s \ S] * \ <\/h4 \>/is ";//....

$s =<<< TXT                     PHP                         TXT;$pattern_Title = '#target="_blank">(.*)\s+#is';preg_match_all($pattern_Title, $s, $r);print_r($r);

Array
(
[0] => Array
(
[0] => target = "_ blank">

PHP



)

[1] => Array
(
[0] =>

PHP

)

)

\ S is written as s

$pattern_Title =   "/target=\"\_blank\"\>.*\<\/a\>\s+\<\/h4\>/is";

Thank you!