Explode a string to an array

Question

Probably easy to do but I can't seem to generate the correct regex.

Say I have this string

$string = '<h2>Header 1</h2><p>ahs da sdka dshk asd haks</p><img src="http://dummyimage.com/100x100/" width="100" height="100" alt="Alt" /><h2>Header 2</h2><p>asdkhas daksdha kd ahs</p><em>Lame</em><p>trhkbasd akhsd ka dkhas</p><h2>Header 3</h2><p>ajdas ahkds hakd</p>';

And I need it like this

$array[0] = '<h2>Header 1</h2><p>ahs da sdka dshk asd haks</p><img src="http://dummyimage.com/100x100/" width="100" height="100" alt="Alt" />';
$array[1] = '<h2>Header 2</h2><p>asdkhas daksdha kd ahs</p><em>Lame</em><p>trhkbasd akhsd ka dkhas</p>';
$array[2] = '<h2>Header 3</h2><p>ajdas ahkds hakd</p>';

...and so on if my string contains more of those H2 blocks.

So, the split-point is at H2 and it needs to keep the HTML-tags. Any pointers?

BoltClock · Accepted Answer · 2010-09-24 11:30:45Z

4

Use preg_split() with a positive lookahead for the opening tag:

print_r(preg_split('/(?=<h2>)/', $string, -1, PREG_SPLIT_NO_EMPTY));

The positive lookahead simply tells the regex parser to split text surrounding <h2>, but not eliminate the tag. If you split by /<h2>/, the tag disappears, just like if you split with explode().

answered Sep 24, 2010 at 11:30

BoltClock

728k165 gold badges1.4k silver badges1.4k bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Vincent Schwidder Over a year ago

This did the trick. And I was on PHP 5.3.0> so no split() for me.

splash · Accepted Answer · 2010-09-24 11:33:13Z

1

$result = split('(?=<h2>)', $string);

or

$result = preg_split('/(?=<h2>)/', $string);

edited Sep 24, 2010 at 11:33

answered Sep 24, 2010 at 11:26

splash

13.4k1 gold badge49 silver badges69 bronze badges

1 Comment

BoltClock Over a year ago

split() is deprecated in favor of preg_split(). But this is still a valid answer anyway.

Revell · Accepted Answer · 2010-09-24 11:28:57Z

0

$string = '<h2>Header 1</h2><p>ahs da sdka dshk asd haks</p><img src="http://dummyimage.com/100x100/" width="100" height="100" alt="Alt" /><h2>Header 2</h2><p>asdkhas daksdha kd ahs</p><em>Lame</em><p>trhkbasd akhsd ka dkhas</p><h2>Header 3</h2><p>ajdas ahkds hakd</p>';

$matches    = split('<h2>', $string);

print_r($matches);

This is deprecated as of PHP 5.3.0 though.

answered Sep 24, 2010 at 11:28

Revell

7233 gold badges8 silver badges22 bronze badges

Collectives™ on Stack Overflow

Explode a string to an array

3 Answers 3

1 Comment

1 Comment

Comments

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

1 Comment

1 Comment

Comments

Related