How to extract some text with regex in PHP?

Question

HTML:

<input name="__CUTE" id="__CUTE" value="/dfdjksfhnvdj9326r" type="hidden">

If need the entire page I will update the post

The only thing I know is that its needs to be with preg_match:

preg_match('/value="([^"]+)"/'...

What are you even trying to extract and what u are trying to do , explain it better please. — Frosty, Jan 07 '18 at 10:56
@Innervisions im trying to extract the value inside the input __CUTE, Then view it through echo. — waylan, Jan 07 '18 at 11:05
@jeprubio But it will extract all the values that is on the page right? I want only what in the CUTE input — waylan, Jan 07 '18 at 11:06
Give me an example what inside __CUTE needs to be extract/replaced — Frosty, Jan 07 '18 at 11:10
That seems to be XML, so use an XML parser. Of course, you could use regular expressions, but I'm pretty sure I could come up with valid and equivalent XML that your regular expressions won't cover, because it's either overcomplicated or brittle. — Ulrich Eckhardt, Jan 07 '18 at 11:10
@Innervisions its very long value so i cut half: /wEPDwUKMTEzMTQ2NjgyOA8WAh4PaG9uZXlwb3RWZXJzaW9uBQI0NxYCZg9kFgYCAQ9kFgICGw9kFgICAQ8WAh4EVGV4dGVkAgUPZBYSAgEPFgIeB1Zpc2libGVnFgICAQ8PFgQfAQUDMTAxHgdUb29sVGlwBRRiYWxhbmNlOiAxMDEgc2F0b3NoaWRkAgMPFgIfAmdkAgUPFgIfA — waylan, Jan 07 '18 at 11:18
@UlrichEckhardt Yes, a little complicated. I've attached a response above — waylan, Jan 07 '18 at 11:20

jeprubio · Accepted Answer · 2018-01-07T11:23:32.603

0

I would use DOMDocument for this but since you want to use a regexp expression:

$res = preg_match('/<input name="__CUTE" (.*?) value="([^"]+)"/s', $html, $matches);

And get the value of the second match only.

In case you want to use DOMDocument:

$dom = new DomDocument();
$dom->loadHTML($html);

$cute = $dom->getElementById("__CUTE");
echo $cute->getAttribute('value');

edited Jan 07 '18 at 11:23

answered Jan 07 '18 at 11:16

jeprubio

Works for me with a DOM better :) Thanks a lot! But how do i make it pull just one line? its gives me 4 lines – waylan Jan 07 '18 at 11:28
Do you mean new DomDocument()->loadHTML($html)->getElementById("__CUTE")->getAttribute('value') ? – jeprubio Jan 07 '18 at 11:38
I fixed the warnings with the help of this post: https://stackoverflow.com/questions/1685277/warning-domdocumentloadhtml-htmlparseentityref-expecting-in-entity thank you:) – waylan Jan 07 '18 at 12:00

1 Answers1