Question 40006 in PHP Question posted in
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Deprecated: preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated – PHP

I have installed WAMP Server 3.3.0 in my computer and after that when I go to localhost loading page displaying following error messages

Deprecated: preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in C:wamp64scriptsconfig.inc.php on line 82

this is my config.inc.php

foreach($Text_Encoding as $key => $value) {
    if(preg_match('~^'.$key.'s+:s+(.+)~mi',$output,$matches) === 1) { //line 82
        $Text_Encoding[$key] = $matches[1];
    }
}

how could I fix this problem?

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2

Answers


  1. 0

    Look like you need to change by this ?

    foreach($Text_Encoding as $key => $value) {
    if(preg_match('~^'.$key.'s+:s+(.+)~mi', $value, $matches) === 1) { 
        $Text_Encoding[$key] = $matches[1];
    }
}

    Your $output is not set and you don’t use $value in your code

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  2. 0

    The intent of your code fragment likely follows along these lines which is to fetch the current environment encoding and replace the array entries with actual values:

    $Text_Encoding = array(
    'IsSingleByte' => '',
    'BodyName' => '',
    'EncodingName' => '',
    'HeaderName' => '',
    'WebName' => '',
    'WindowsCodePage' => '',
    'CodePage' => '',
);
$command = 'CMD /D /C powershell [System.Text.Encoding]:: Default';
$output = `$command`;
foreach($Text_Encoding as $key => $value) {
    if(preg_match('~^'.$key.'s+:s+([a-zA-Z0-9-'.() ]+)~mi',$output,$matches) === 1) {
        $Text_Encoding[$key] = $matches[1];
    }
}

    From this it appears that using $value is not what you want.

    Source: http://forum.wampserver.com/read.php?2,163848,163848

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