PHP is_iterable() Function

Example

Check whether the contents of a variable is an iterable value or not:

<?php
$a = "Hello";
echo "a is " . is_iterable($a) . "<br>";

$b = array("red", "green", "blue");
echo "b is " . is_iterable($b) . "<br>";

$c = array("Peter"=>"35", "Ben"=>"37", "Joe"=>"43");
echo "c is " . is_iterable($c) . "<br>";

$d = [1, 2, 3];
echo "d is " . is_iterable($d) . "<br>";
?>

Try it Yourself »

Definition and Usage

The is_iterable() function checks whether the contents of a variable is an iterable value or not.

This function returns true (1) if the variable is iterable, otherwise it returns false/nothing.

Syntax

is_iterable( variable);

Parameter Values

Parameter	Description
variable	Required. Specifies the variable to check

Technical Details

Return Value:	TRUE if variable is iterable, FALSE otherwise
Return Type:	Boolean
PHP Version:	7.1+

❮ PHP Variable Handling Reference