Passing Functions as Arguments in PHP
In PHP, you can extend the functionality of your code by passing functions as arguments to other functions. This technique, known as higher-order programming, allows you to create flexible and reusable code.
Syntax in PHP >= 5.3.0
To pass a function as an argument, you can use anonymous functions, also known as lambdas. The syntax for an anonymous function in PHP is:
<code class="php">function ($args) {
// Function body
}</code>
For example, in JavaScript, you would write:
<code class="javascript">object.exampleMethod(function(){
// some stuff to execute
});</code>
In PHP, you would pass the anonymous function as an argument to the exampleMethod function:
<code class="php">function exampleMethod($anonFunc) {
// Execute the anonymous function
$anonFunc();
}
exampleMethod(function(){
// Some stuff to execute
});</code>
Note: Anonymous functions are available in PHP versions 5.3.0 and later.
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