Question

How to delete an element from an array by key in PHP

Answer 1

$arr = array(0 => "php", 1 => "c++", 2 => "c", 3 => "java", 4 => "python");
$arr = array_diff_key($arr, [0 => "abc", 4 => "abc"]);
 
echo "<pre>";
print_r($arr);
echo "</pre>";
 
/*
run: 
 
Array
(
    [1] => c++
    [2] => c
    [3] => java
)
 
*/

 

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Answer 2

$arr = array(0 => "php", 1 => "c++", 2 => "c", 3 => "java", 4 => "python");
$arr = array_diff_key($arr, [0 => "xyz", 1 => "xyz"]);
 
echo "<pre>";
print_r($arr);
echo "</pre>";
 
/*
run: 
 
Array
(
    [2] => c
    [3] => java
    [4] => python
)
 
*/

 

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