How to match the first and last regular expressions </p>

How to match the first & lt;/p & gt; and the last & lt;/p & gt; such as the following & lt; p & gt; 1111111 & lt; /p & gt; & lt; p & gt; 2222222 & lt;/p & gt; & lt; p & gt; 33333333 & lt;/p & gt; how to match the first regular expression

And the last

For example, the article is as follows:

1111111

2222222

33333333

4444444

55555555

66666666

7777777

Matched output

1111111

In

And the last section

7777777

Of

How to get regular expressions? Share To: and the last one

] For example, the article is as follows:

1111111

2222222

33333333

4444444

55555555

666666... 'data-pics = ''>
------ Solution --------------------
Preg_match_all ('/^

. + <\/P>
------ Solution --------------------

. + <\/P> $/U', $ s, $ m );
------ Solution --------------------

$s =<<< TXT
1111111

2222222

33333333

4444444

55555555

66666666

7777777

TXT;
echo preg_replace('#(
)(.+)(
)#s', '$1aaa$2$3BBB', $s);

1111111

Aaa

2222222

33333333

4444444

55555555

66666666

7777777

BBB


Reference:

Quote: reference:

Quote: reference:

If you only want to match

You don't need regular expressions.
PHP5, no one should use PHP4 now...

$str = '
1111111

2222222

33333333

4444444

55555555

66666666

7777777
';
$fp = stripos($str, '
');
$first = substr($str, $fp, 4);
$ep = stripos($str, '
');
$end = substr($str, $ep, 4);

Wrong, $ ep = strripos ($ str ,'

');
Brother upstairs is the same as I think.

In fact, I want to append some text at the end of the first paragraph, and add some text at the end of the last paragraph.

------ Solution --------------------
Reference:

Quote: reference:

Quote: reference:

If you only want to match

You don't need regular expressions.
PHP5, no one should use PHP4 now...

$str = '
1111111

2222222

33333333

4444444

55555555

66666666

7777777
';
$fp = stripos($str, '
');
$first = substr($str, $fp, 4);
$ep = stripos($str, '
');
$end = substr($str, $ep, 4);

Wrong, $ ep = strripos ($ str ,'

');
Brother upstairs is the same as I think.