PHP uses an array to implement the queue (in fact, first-out how to implement)

the array handler function of PHP also enables the array to be queued, and the stack is "advanced and out."

In the stack, the last data pressed (into the stack) will be ejected first (out of the stack). And the queue is FIFO. It's like the bank's automatic arranging machine.

The array is treated as a stack in PHP. The main use of Array_push () and Array_pop () two system functions to complete. The stack is mainly using the Array_push () function to add one or more elements to the tail of the first parameter. It then returns the length of the new array. The scale is as follows:

In PHP, the array is considered as a queue and is mainly implemented with Array_push () and Array_shift ().

Copy the Code code such as the following:
<?php
$zhan =array ("WEB");//declaring an array as a queue
Array_push ($zhan, "PHP");//Press the string into the stack (array)
Array_push ($zhan, "WWW.CHHUA.COM");//press into an element again
Print_r ($zhan);//print array contents
?>

The stack is mainly to use the Array_shift () function to eject the first element of the array and reduce the length of the array by 1, as shown in the following scale:
Copy the Code code such as the following:
<?php
$zhan =array ("Web", "www.chhua.com", "Web Development note", "PHP", "Site Building");//Declare an array as a stack
Array_shift ($zhan);//String out of the queue (array)
Print_r ($zhan);//printing array contents Array ([0] = web[1] = www.chhua.com[2] + WEB Development Note [3] = PHP)
?>

PHP uses an array to implement the queue (in fact, first-out how to implement)