Removing non-integer entries from array in php
Here we are going to discuss how to remove strings or non-integer values from an array in php.
For this we need to use one simple array function in php called array_filter() . it always filters an array using a callback function.
Syntax :
array_filter(array, callbackfunction, flag)Parameters :
- array :- required, is the array to be filtered
- callbackfunction :- optional, the callback function
- flag :- optional, Specifies what arguments are sent to callback
Example
array([0] => 1,
[1] => 'one',
[2] => 2,
[3] => 'two',
[4] => 3);Expected Result :
array([0] => 1,
[1] => 2,
[2] => 3);Solution :
$result = array_filter($array, 'is_numeric');Here you dont have to do any other steps as ‘is_numeric’ is a built in function, all you have to do is just call this line.
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