How to delete elements in an array in php

How to delete elements in an array in php: You can use the unset() method to delete, such as [unset($array[1])]. Using the unset() method will not change other keys. If you want to reorder other keys, you can use the array_values() method.

#There are many ways to delete elements in an array. Here are some common ways.

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If you want to delete an element in the array, you can use unset() or array_splice() method.

unset() method

Note: If you use the unset() method, it will not change other keys. If you want to change other To rearrange and sort by key, you can use array_values().

Code implementation:

<?php
$array = array(0 => "a", 1 => "b", 2 => "c");
unset($array[1]);
      //↑ 你要删除的数组元素值的键print_r($array);
?>

Output result:

Array (
    [0] => a    
    [2] => c
    )

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array_splice() method

If you use the array_splice() method, the keys of the array will be automatically re-indexed, but it will not work for associative arrays. You need to use array_values() to replace the keys. Convert to numeric keys.

Code implementation:

<?php
$array = array(0 => "a", 1 => "b", 2 => "c");
array_splice($array, 1, 1);
                   //↑ Offset which you want to delete
print_r($array);
?>

Output result:

Array(
    [0] => a    
    [1] => c
    )

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