php explode select multi choose -
i want divide these html serval several part. 1 <h2> or <h3> <p> , <span> 1 part. tried explode array('<h2>','<h3>'), caused warning. explode not support multi choose.
so how perfectly? thanks.
$text=<<<eot <h2>title1</h2> <p>something</p> <span>something</span> <h3>title2</h3> <p>something</p> <p>something</p> <p>something</p> <h2>title3</h2> <span>something</span> <h2>title4</h2> <span>something</span> <p>something</p> <p>something</p> eot; foreach ($text $result) { $arr = explode(array('<h2>','<h3>'),$result); reset($arr); foreach($arr $line){ echo $line.'<hr />'; } } warning: invalid argument supplied foreach() on line 23;
my expected output is:
<h2>title1</h2> <p>something</p> <span>something</span> ___________________________ <h3>title2</h3> <p>something</p> <p>something</p> <p>something</p> ___________________________ <h2>title3</h2> <span>something</span> ___________________________ <h2>title4</h2> <span>something</span> <p>something</p> <p>something</p> ___________________________
you can use preg_split() explode @ different things. can use regex here:
$text = <<<eot <h2>title1</h2> <p>something</p> ... eot; $arr = preg_split("#(?=<h[23]>)#", $text); if(isset($arr[0]) && trim($arr[0])=='') array_shift($arr); // remove first block if empty foreach($arr $block){ echo $block."<hr />\n"; }
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