Using arrays to implement stacks and queue fighting Spirit Queue Song queue study queue

Array_push () can implement the PHP language stack function.

array_push()函数的使用心得1.第一个参数必须是数组。2.所有添加的数组均为索引，即数组下标。3.$num为压入后$stack所含数组元素的个数。4.使用数组的直接赋值也可以实现数组的进栈功能，例如$array$key。$num = array_push($stack"C#""Ruby"array('jsp''Asp'),array('jsp''Asp'));

Array_pop () can implement the queue function of the PHP language.

arrayarrayarrayNULL。 此外如果被调用不是一个数则会产生一个 Warning。
   
    $stack = array("orange", "banana", "apple", "raspberry");$fruit = array_pop($stack);print_r($stack);?>Array(    [0] => orange    [1] => banana    [2] => apple)

Array_shift-moves the cell at the beginning of the array to a group

arrayarray 的长度减一并将所有其它单元向前移动一位。所有的数字键名将改为从零开始计数，文字键名将不变。

****array_unshift — 在数组开头插入一个或多个单元****

int Array_unshift (array & aRray,m I x e D var [, mixed $ ...])
Array_unshift () Inserts the incoming cell at the beginning of the array. Note that the unit is inserted as a whole, because
This incoming unit will remain in the same order. All numeric key names are modified to count back from zero, and all text key names remain unchanged.

   
    $queue = array("orange", "banana");array_unshift($queue, "apple", "raspberry");print_r($queue);?>以上例程会输出：Array(    [0] => apple    [1] => raspberry    [2] => orange    [3] => banana)

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The above describes the use of arrays to implement the stack and queue, including the queue, the use of the content, I hope to be interested in PHP tutorial friends helpful.

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