PHP preg_grep -> search array where search term contains special character

Question

Trying to search an array that contains special characters:

$array=array("0|0Name"=>"first name","0|1last"=>"last name","1|0email"=>"email address");

tried

  $v="0|0";
  print_r(preg_grep("/^".$v.".*/",$array)); --->FAIL

tried:

  $v=str_replace("|","\|","0|0");
  print_r(preg_grep("/^".$v.".*/",$array)); --->FAIL

an array with the keys to reference the $array. – dealerwrx Feb 24 '16 at 00:04 — dealerwrx, Feb 24 '16 at 00:04

score 0 · Accepted Answer · answered Feb 22 '16 at 23:51

0

Use preg_quote(), it will escape the special characters, taking into account the delimiter (in your case, /):

$v = preg_quote("0|0", "/");
print_r(preg_grep("/^".$v.".*/",$array));

answered Feb 22 '16 at 23:51

Davey Shafik

Thats it! Thanks. Also found that I need to change $array to array_keys($array) to actually find anything :) – dealerwrx Feb 24 '16 at 00:05

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