php - Cannot replace html entity using str_replace

Question

I have the following html entity codes:

$html = "<div id="sstssfb_aaa-theme_wrapper" class="first_sstform_wrapper"> <div class="bscon sstform_wrapper"> <div class="sst_formheaderbgr">"

I want to replace this string sstssfb_aaa-theme_wrapper with the new one using str_replace like so:

$num = 20;

$old = '#sstssfb_aaa-theme_wrapper';
$old = str_replace("#", "", $old);

$new = 'sstssfb_aaa-theme_wrapper' . $num;

$new_html = str_replace($old, $new, $html);

But it won't work at all and returning the original $html instead of the modified.

What would be the problem here and how to solve it?

EDIT:

It works after I trim the $old variable like this:

$old = trim(str_replace("#", "", $old));

agree with @SunilPachlangia because adding double quote on $html variable should solve the problem — Aniruddha Chakraborty
– Aniruddha Chakraborty, Commented Sep 23, 2015 at 6:41
The replacement works as expected. Your original code was faulty, you corrected it in between. $new_html contains the replaced token. — arkascha
– arkascha, Commented Sep 23, 2015 at 6:46
@arkascha is right, your code is working, don't see the issue. — Vincenzo Petrucci
– Vincenzo Petrucci, Commented Sep 23, 2015 at 6:58

Ninju · Accepted Answer · 2015-09-23 06:37:50Z

1

Try this

$old = '#sstssfb_aaa-theme_wrapper';
$old = str_replace("#", "", $old);

$new = 'sstssfb_aaa-theme_wrapper' . $num;

$html = str_replace($old, $new, $html);

then printing the $html you will get the result.

answered Sep 23, 2015 at 6:37

Ninju

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3 Comments

arkascha Over a year ago

Would you care to elaborate the difference to the OPs code?

Ninju Over a year ago

After replacing need to assign it to the variable $html

arkascha Over a year ago

Correct answer for the original code the OP posted, though the OP has changed the code in between.

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