PHP preg_replace function error with special characters

Question

I am trying to use preg_replace function to parse this table in a Html page :

Tuition.    $13,140   $13,167    $13,167    
Books       $996      $1,176     $1,176

Because of table tags I got "Unknown modifier 't' " error and I changed '/ /' with '~ ~'.

Still I have problem, the function is not changing the text. I think the problem with '$' dollars sign in the text, how can I skip it? I tried to do but I couldn't.

Here is my code :

$price = $html->find('div[id=divctl00_cphCollegeNavBody_ucInstitutionMain_ctl00] table[class=tabular]');

        $price1=$price[0];
        $show=$price1;

        $ch="~".$show->children(1)->children(0)->children(1)."~";
        $show=preg_replace($ch,' ',$show, 1);

Thanks

Using preg_quote will escape the pattern so the preg_replace works, but I'm not sure what you're actually trying to do with the table? — pjumble
– pjumble, Commented Mar 20, 2012 at 21:03
Yes preg_quote also skips '< >' character and it breaks my table, I want to keep HTML tags, I just want to skip dollar sign. I am trying to transfer data from one website to another. — Gokhan Arik
– Gokhan Arik, Commented Mar 20, 2012 at 21:04
$ch will be in a for loop and each time it will keep data on the table. When you made $ch="Tuition and fees" there is no problem but when you out $ch=$13,140 it is not working — Gokhan Arik
– Gokhan Arik, Commented Mar 20, 2012 at 21:07
I just mentioned dollar sign but the problem may be with comma as well, or another reason. I am not good at regex I just started learning and I need to fix this for my project. — Gokhan Arik
– Gokhan Arik, Commented Mar 20, 2012 at 21:16

Michel · Accepted Answer · 2012-03-21 08:33:51Z

2

try this : $show=preg_replace(str_replace('$','\$',$ch),' ',$show, 1); If you can't use preg_quote and have multiple escape ( in this case $ is your problem), you could put your special character in an array and filter from it.

answered Mar 21, 2012 at 8:33

Michel

96014 silver badges24 bronze badges

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

Collectives™ on Stack Overflow

PHP preg_replace function error with special characters

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related