PHP preg_replace: Deprecated [duplicate] - php

Question

This question already has answers here:
Replace preg_replace() e modifier with preg_replace_callback
(3 answers)
Closed 8 years ago.
I have this Deprecated warning after switching my php to 5.5.8,
Deprecated: preg_replace(): The /e modifier is deprecated, use
preg_replace_callback instead in C:\wamp\www...Curly.php on
line 28
This is the function in my class of Curly,
public function replace ($input, $options = array()) {
return preg_replace("/\{{2}(([a-z\_]+\|.+)|([a-z\_]+))\}{2}/Ue",'$this->_replace("\\1",$options)',$input);
}
so if I use preg_replace_callback instead,
return preg_replace_callback("/\{{2}(([a-z\_]+\|.+)|([a-z\_]+))\}{2}/Ue",'$this->_replace("\\1",$options)',$input);
Then I get this error,
Warning: preg_replace_callback(): Requires argument 2,
'$this->_replace("\1",$options)', to be a valid callback
in C:\wamp\www...Curly.php on line 28
Any ideas how can I fix this?
EDIT:
class Curly extends CoreModel
{
// Set the property/ variable of this class
public $constant = null;
/**
* Extend the parent class property.
*/
public function __construct($connection){
// Extend parent's.
parent::__construct($connection);
$this->constant = new Constant($connection);
}
/**
* Replace the curly in an input string
* #param string $input
* #return string
*/
public function replace ($input, $options = array()) {
//return preg_replace("/\{{2}([a-z]+\|.+)\}{2}/Ue",'$this->_replace("\\1")',$input);
//return preg_replace("/\{{2}(([a-z\_]+\|.+)|([a-z\_]+))\}{2}/Ue",'$this->_replace("\\1",$options)',$input);
return preg_replace_callback(
"/\{\{([a-z_]+(?:\|.+)?)\}\}/U",
function($m) { return $this->_replace($m[1], $options); },
$input
);
}
/**
* Run the replacement code on a given macro string
* #param string $input
* #return string
*/
private function _replace ($input,$options) {
// Set local vars.
$defaults = array();
// Call internal method to process the array.
$array = parent::arrayMergeValues($defaults,$options);
//print_r($array);
// Convert array to object.
$property = parent::arrayToObject($array);
// type-checking comparison operator is necessary.
if (strpos($input, '|') !== false) {
//VERTICAL SIGN FOUND
list ($name,$params) = explode("|",$input);
if (method_exists($this,$name)) {
return $this->$name($params);
}
throw new Exception ("Unrecognised macro: {$name}.",500);
} else {
// Get the input string and request the data from constant table.
$value = $this->constant->getRow($input)->value;
// If there is a value returned from the contstant table.
if($value !== null) {
// Return the what is returned from the the constant table.
return $value;
} else if(isset($property->$input)) { // If there is a customised value from the developer.
// Return what is customised by the developer.
return $property->$input;
} else { // Nothing is found.
// Return what is from the input.
return "{{{$input}}}";
}
}
}
/**
* Replaces a YouTube curly
* #param string $params
* #return string
*/
private function youtube ($params) {
parse_str($params);
// set defaults
if (!isset($id)) { $id = "ykwqXuMPsoc"; }
if (!isset($width)) { $width = 560; }
if (!isset($height)) { $height = 315; }
// output the final HTML
return "<iframe width=\"{$width}\" height=\"{$height}\" src=\"http://www.youtube.com/embed/{$id}\" frameborder=\"0\" allowfullscreen></iframe>";
}
}

Answer 1

How about:
public function replace ($input, $options = array()) {
return preg_replace_callback(
"/\{\{([a-z_]+(?:\|.+)?)\}\}/U",
function($m) use($options) { return $this->_replace($m[1], $options); },
$input
);
}

Answer 2

Otherwise with call_user_func_array:
return preg_replace_callback(
// RegExpr
"/\{{2}(([a-z\_]+\|.+)|([a-z\_]+))\}{2}/Ue",
// Callback
array($this, '_replace'),
// Data
$input
);