How to delete an array element in php

php method to delete an array element: You can delete an element in the array by using the array_splice function, such as [$a=array("a"=>"purple","b"=> "orange");array_splice($a,0,2,$a2);].

The operating environment of this article: windows10 system, php 7.3, thinkpad t480 computer.

Function introduction:

array_splice() function removes the selected element from the array and replaces it with a new element. The function will also return an array of removed elements.

Grammar:

array_splice(array,start,length,array)

Example:

<?php
$a1=array("a"=>"red","b"=>"green","c"=>"blue","d"=>"yellow");
$a2=array("a"=>"purple","b"=>"orange");
array_splice($a1,0,2,$a2);
print_r($a1);
?>

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