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This article mainly explains the "php array anywhere to insert elements and delete specific elements of the example", the article explained the content is simple and clear, easy to learn and understand, the following please follow the editor's ideas slowly in depth, together to study and learn "php array anywhere insert elements and delete specific elements of the example" it!

As follows:

$ary = array (array ('tweets = > 1), array (' tweets = > 2), array ($ary = > 9)); $t = array_splice ($ary, 1)); print_r ($ary)

Console output:

$ary = array (array ('tween = > 1), array (' t = > 3), array ('t = > 2)

A brief introduction to the array_splice method, parameter 1 is the array to be operated, parameter 2 is the index value of the operation element, parameter 3 is the length, and parameter 4 is the element to be replaced. The effect of this method is to delete the coherent elements in the parameter one array with parameter two as the starting position, length parameter three, and then fill it with parameter four.

If the length is 0, the effect is equivalent to inserting the specified element at the specified index value.

If the length is 1, the effect is equivalent to removing the element of the index value.

$ary = array (array ('tweets = > 1)

Delete a specific element in the array

$arr1 = array (1 arr1 3, 5 key 7 var_dump 8); $key = array_search (3, $arr1); if ($key! = = false) {array_splice ($arr1, $key, 1);} var_dump ($arr1)

Output: array (1, 5, 7, 8)

Array_slice (array,start,length,preserve)

Start with the start element of the array and return the rest of the array

$a=array ("red", "green", "blue", "yellow", "brown"); print_r (array_slice ($aMagne2))

Output array ("blue", "yellow", "brown")

Array_push

Array_push-pushes one or more units into the end of the array (stack)

Description

Int array_push (array & array, mixed var [, mixed...])

Array_push () treats array as a stack and pushes the passed variables into the end of the array. The length of the array will increase according to the number of variables on the stack.

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