PHP Callback Functions | Callback in PHP | How to use callback function in PHP

Published: 03 November 2021
on channel: Programming with Sri

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What is PHP callback functions?
To use a function as a callback function, pass a string containing the name of the function as the argument of another function.

eg:
function getStrLen($item){
return strlen($item);
}

$itemArray = [ "Phone","Keyboard","Pen"];

$lenghts = array_map("getStrLen",$itemArray);

print_r($lenghts);

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