How can I use foreach to return true or false.
For example, this isn’t working.
function checkArray($myArray) { foreach( $myArray as $key=>$value ) { if(!$value == $condition) { return false; } else { return true; } } if ($checkArray == true) { // do something }
What is the correct syntax for using foreach as true/false function? If you can’t do it, could you use it to change an existing variable to true/false instead?
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Answer
You would return true
if the element was found/condition is true. And after the loop return false
– if it had been found, this statement wouldn’t have been reached.
function checkArray($myArray) { foreach($myArray as $key => $value) { if ($value == $condition) { return true; } } return false; } if (checkArray($array) === true) { // ... }
Of course true
and false
are interchangeable, depending on what output you expect.