How come I cannot explode a <ul></ul> in php?

Question

I am trying to explode 'ul' to get the text. Code below, Help, appreciate.

<?php
$html="<ul id='get_user' class='get_user'>1,2,3,4</ul>";
$first_explode=("<ul id='get_user' class='get_user'>",$html);
$second_explode=("</ul>", first_explode[1]);
$thrid_explode=(",", $second_explode[0]);
echo $thrid_explode[1]; //expecting 2
?>

Have you heard of this new thing called Regular Expressions? — Achrome
– Achrome, Commented Feb 26, 2015 at 2:59
if it is all as you show above, all you need is php.net/strip_tags — user557846
– user557846, Commented Feb 26, 2015 at 3:14

check · Accepted Answer · 2015-02-26 03:25:13Z

1

just with this.

<?php
    $html ="<ul id='get_user' class='get_user'>1,2,3,4</ul>";
    $arrayUL = explode(",", strip_tags($html));
    print_r($arrayUL);
?>

strip_tags Manual

answered Feb 26, 2015 at 3:25

check

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5 Comments

user557846 Over a year ago

can't imagine where you came up with that idea.

check Over a year ago

i just wanna help n solving.

kenny Over a year ago

Thanks for your help. You solve my question. but unfortunately, I cannot solve my problem. Because I use .ajax to return the text to a <ul>, so it doesn't work. Thanks anyway.

check Over a year ago

whats the problem..? u can use json in .ajax to get return data form php side.

kenny Over a year ago

I don't know what the problem is. I can echo <ul></u> with ajax $("#get_user").text(data); , but when I use strip_tags, it echo nothing, if I put some text between<ul></ul>, it will echo that text. I don't understand.

Community · Accepted Answer · 2017-05-23 11:43:24Z

0

Check out this Stackoverflow answer: RegEx to extract text between a HTML tag

The regex "/<([A-Za-z][A-Za-z0-9]*)\b[^>]*>(.*?)<\/\1>/" will extract text within HTML tags. You can use php's preg_match: http://php.net/manual/en/function.preg-match.php

Like so:

$regex = '/<([A-Za-z][A-Za-z0-9]*)\b[^>]*>(.*?)<\/\1>/';
$string = '<div class="some-class" style="display:block;">Hello</div>';
preg_match($regex, $string, $matches);
print_r($matches);

In summary, you want to use a Regular Expressions for parsing anything more complicated than simple character delimiters. Here's a handy online regular expression tester: https://regex101.com/#pcre

edited May 23, 2017 at 11:43

CommunityBot

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answered Feb 26, 2015 at 3:18

mjwunderlich

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3 Comments

user557846 Over a year ago

you should never use Regular Expressions for parsing html. stackoverflow.com/questions/6751105/…

kenny Over a year ago

Thanks for you time. But I copy and paste your code exactly to test. It doesn't work. Did you miss something or probably I don't know how to use it.

mjwunderlich Over a year ago

@Dagon it's a matter of usage -- if it's a single line of HTML you need to parse, it works quite well. Obviously for larger endeavors, use an XML DOM parser. stackoverflow.com/a/6752487/1000437

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