Php return
From w3cyberlearnings
Contents |
return
return calls within a function when the function end the execution, and finally it returns the function call.
Syntax
function myFunction(input) {
if(input) {
return true;
}
else {
return false;
}
}
Example 1
<?php
function myfunc() {
return 100;
}
$getnum = myfunc();
echo $getnum;
?>
Output
100
Example 2: function to check input for array
- Return Array OR TRUE when the function input argument is an array.
- Return False, when the function input argument is not an array.
<?php
function myArray($input) {
if (is_array($input)) {
return $input;
} else {
return false;
}
}
// test 1
$myData = array('leader', 'manager', 'mother');
if (myArray($myData)) {
echo 'It is an array <br/>';
} else {
echo 'It is not an array<br/>';
}
// test 2
$myName = "Michel Jackson";
if (myArray($myName)) {
echo 'It is an array <br/>';
} else {
echo 'It is not an array<br/>';
}
?>
Output
It is an array It is not an array
Example 3: check input for digit/integer
<?php
$input = 'name';
function check_input($input) {
if (is_int($input)) {
return 1;
} else {
return false;
}
}
if (check_input($input) == false) {
echo 'it is not digit';
}
?>
Output
it is not digit
Example 4
<?php
function check_input($input) {
$r = false;
if (is_int($input)) {
$r = true;
} else {
$r = false;
}
return $r;
}
if (check_input(30)) {
echo 'yes a number';
} else {
echo 'not a number';
}
?>
Output
yes a number
