I want to know how to pass more arguments to my array_walk..
$addresses = array('www.google.com', 'www.yahoo.com', 'www.microsoft.com');
$a = 'hey';
$b = 'hey';
array_walk($addresses, array($this, '_handle'), $a, $b); // $a and $b parameters doesn't get passed
private function _handle($address,$a, $b) {
echo $address; // www.google.com
echo $a // 012
echo $b // 012
}
How do I pass parameters anyway? I have to pass more than 5 parameters.. please teach me.. thanks!
The third parameter is a mixed data type. If you have many parameters, I would suggest putting them into an Array - perhaps an associative array to name them. You'd then pull them back out of that param:
$addresses = array('www.google.com', 'www.yahoo.com', 'www.microsoft.com');
$params = array('first','second');
array_walk($addresses, array($this, '_handle'), $params);
private function _handle($address,$count, $params) {
echo $address; // www.google.com
echo $params[0]; // first
echo $params[1]; // second
}
It will only allow one argument for user data. I suggest passing your values as an array.
array_walk($addresses, array($this, '_handle'), array($a, $b));
The function passed to array_walk() takes 2-3 parameters.
To pass multiple variables to array_walk pass an array.
array_walk($addresses, array($this, '_handle'), array('a'=>$a, 'b'=>$b));
private function _handle($address, $k, $data){
echo $address;
echo $data['a'];
echo $data['b'];
}
You can use the use keyword with an anonymous function like this:
Note: $custom_var is a mixed datatype so can be an array if you want to pass several values
$custom_var = 'something';
array_walk(
$array,
function( &$value, $key) use ( $custom_var ){
// Your code here, you can access the value of $custom_var
});
