Below is a simple example of how you could return a value in a PHP function.
<?php
function returnme($value)
{
return $value;
}
echo returnme('hello'); // outputs: hello
?>
function myFunction($parameter1, $parameter2) { // this function's code goes here return $returnValue; // the value returned }
In the declaration of the receiving function, you add an ampersand. <?php function myWayCoolFunction( &$params) {.....} $x = array('1','2','3'); myWayCoolFunction($x) ?>
isset( $var ) is a PHP function which returns TRUE or FALSE depending on whether a specified $var has been assigned to any value (or, initialized).
Function returns a value but sub procedure do not return a value.
ord() is the function you need. echo ord(' '); Would output the number 32.
function myFunction($parameter1, $parameter2) { // this function's code goes here return $returnValue; // the value returned }
Its function naming and parameter order/return values are inconsistent
Functions are basic blocks of code that work together. Functions can be used from the core PHP or can be created by users. To create a function, use the following syntax: function function_name(arg1, arg2, ... argX) { //Any valid php code here } To use a function, use the following syntax: function_name(arg1, arg2, ... argX);
no, every function can not return a value. for example void name() { cout<<"Hello world"; } this function does not return any value due to the key word void that tells the compiler that the function does not returns a value.
In the declaration of the receiving function, you add an ampersand. <?php function myWayCoolFunction( &$params) {.....} $x = array('1','2','3'); myWayCoolFunction($x) ?>
<?php function calculate_electric_bill( $cost_per_kilowatt, $killowatts_used ) { return $cost_per_kilowatt * $kilowatts_used; } echo calculate_electric_bill( 0.01, 1000 );
The function header. The return value is written before the name of the function. This return type must match the type of the value returned in a return statement.
The simplest way (the old procedural way) is to just declare the function: function ourSimpleFunction(){ //Function Guts } Functions do not require a return type, or typed arguments in PHP, however you can use type-hinting if it makes you feel better.
return
echo function();
In a value-returning function, you need to include a "return" statement to specify the value that the function should return back to the caller.
It means end the function. Functions automatically end when execution reaches the end of the function, but you can return from a function at any point within the function with a return statement. If the function returns a value to its caller, you must provide a reachable return statement along with the value you wish to return.