How to escape regex special characters from array using php to use in javascript

Question

I have an array that also contains regex special characters in its some values, I want to implode() it so that special characters in its some values escape using preg_quote()

Here is what I tried

$arr = array("+1", "1+4"); 
echo implode("|", $arr);

I want escaped output like this

\+1|1\+4|

You did not research this, as any reasonable search on the internet would have pointed you to the right method. — trincot
– trincot, Commented Feb 5, 2018 at 8:06
There is another way too "\Q" . implode("\E|\Q", $arr) . "\E" — revo
– revo, Commented Feb 5, 2018 at 8:16

Syscall · Accepted Answer · 2018-02-05 08:11:05Z

4

You could use array_map() with preg_quote() like this :

$arr = array("+1", "1+4"); 
echo implode("|", array_map('preg_quote', $arr));

Outputs :

\+1|1\+4

To get the final pipe :

$arr = array("+1", "1+4" , ""); 
echo implode("|", array_map('preg_quote', $arr)) ;
// Or
$arr = array("+1", "1+4"); 
echo implode("|", array_map('preg_quote', $arr)) . "|" ;

Outputs :

\+1|1\+4|

edited Feb 5, 2018 at 8:11

answered Feb 5, 2018 at 8:05

Syscall

19.8k10 gold badges44 silver badges60 bronze badges

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

Collectives™ on Stack Overflow

How to escape regex special characters from array using php to use in javascript

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related