doukan1258 2013-12-23 07:36
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preg_replace到preg_replace_callback,数组作为替换

I'm migrating an application to work with PHP 5.5, and I need to remove the /e character from the preg_replace function, to do that I'm using preg_replace_callback()

My actual function looks like this:

preg_replace ( '#\{([a-z0-9\-_]*?)\}#Ssie' , '( ( isset($array[\'\1\']) ) ? $array[\'\1\'] : \'\' );' , $template );

Where:

$template contains a html document with tags like this one: {user_name}

and $array contains

$array['user_name'] = 'The user';

I've been trying to convert this to work with PHP 5.5 with not success.

This is what I did so far:

return preg_replace_callback ( '#\{([a-z0-9\-_]*?)\}#Ssi' , function ( $array ) {
    return ( ( isset ( $array[1] ) ) ? $array[1] : '' );
} , $template );

But It's not working. The tags closed in braces are not being replaced.

What Am I missing?

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1条回答 默认 最新

  • dongyi1111 2013-12-23 07:57
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    You need to use the use keyword to pull in $array into your anonymous function...

    return preg_replace_callback ( '#\{([a-z0-9\-_]*?)\}#Ssi' , function ($matches) use ($array) {
        return ( ( isset ( $array[$matches[1]] ) ) ? $array[$matches[1]] : '' );
    } , $template );
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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