preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead. This happens with php5.5

[onkar-infoobjects]

preg_replace() has been used on line 79 & 80 but now in php5.5 it have been deprecated with preg_replace_callback(), what would be solution of this problem.

mpdf/includes/functions.php :: 79 & 80 line

75 if(!function_exists('strcode2utf')){
76 function strcode2utf($str,$lo=true) {
77 //converts all the &#nnn; and &#xhhh; in a string to Unicode
78 if ($lo) { $lo = 1; } else { $lo = 0; }
79 $str = preg_replace('/&#([0-9]+);/me', "code2utf('\1',{$lo})",$str);
80 $str = preg_replace('/&#x([0-9a-fA-F]+);/me', "codeHex2utf('\1',{$lo})",$str);
81 return $str;
82 }
83 }

[onkar-infoobjects]

I have solved this issue by replacing line 79 & 80 by following code.

$str = preg_replace_callback('/&#([0-9]+);/m', function($m){ return code2utf($m[1],$lo); }, $str);
$str = preg_replace_callback('/&#([0-9]+);/m', function($m){ return codeHex2utf($m[1],$lo);}, $str);

[sandroneuhaus]

Had the same problem calling the library helper CodeIgniter and your solution worked properly. Thank you!

[rzds]

$lo it's null inside that function.
"use" is required in order to make that variable available inside that function.

$str = preg_replace_callback('/\&\#([0-9]+)\;/m', function($m) use ($lo){return code2utf($m[1],$lo); }, $str);
$str = preg_replace_callback('/\&\#x([0-9a-fA-F]+)\;/m', function($m) use ($lo){return codeHex2utf($m[1],$lo);}, $str);

[ajay-patidar]

Thanks rzds

By use this my error is solved.

Thanks again!!

[ikissiva]

Hi guys,

Can you help me convert this to using preg_replace_callback

preg_replace('!s:(\d+):"(.*?)";!e', "'s:'.strlen('$2').':"$2";'", $input)

[RalphCorderoy]

Similar warnings occur for other lines.

$ cat -n MPDF57/mpdf.php | sed -n '7663p; 12058p'
  7663                  $html = preg_replace('/\{DATE\s+(.*?)\}/e',"date('\\1')",$html );
 12058                  $html = preg_replace('/\{DATE\s+(.*?)\}/e',"date('\\1')",$html );
$

[SuperNovaP]

This forgotten thread just saved me, thank you all haha. It works just fine!

[uistacks]

Hi guys,

Can you help me convert this to using preg_replace_callback

preg_replace('!s:(\d+):"(.*?)";!e', "'s:'.strlen('$2').':"$2";'", $input)

[ppavan1956]

I can't seem to figure out the preg_replace_callback for the code below

$html = preg_replace('/{DATE\s+(.*?)}/e',"date('\1')",$html );