Introduction to the usage of PHP function array_shift() in deleting array elements_PHP tutorial

In previous articles, we have described to you the specific usage of the function array_pop() to delete array elements at the end of the array. Today we introduce to you the method of deleting array elements at the beginning of the array. . Here we will use Next we will show you how the PHP function array_shift() deletes elements from the beginning of the array:

 
＜? 
 
 
 
/* 首先我们建立一个数组 */ 
 
 
 
 $fruitArray = array("apple", "orange", "banana", "Peach", "pear");  
 
 
 
/* 使用 array_shift()函数从数组的开头删除一个元素 */ 
 
 
 
 $shifted = array_shift($fruitArray);  
 
 
 
/* 现在我们把删除后的数组中所有元素的键（key）与值（value）都显示在网页上 */ 
 
 
 
while (list($key,$value) = each($fruitArray)) { 
 
 
 
echo "$key : $value＜br＞"; 
 
 
 
} 
 
 
 
echo "＜br＞最后，刚才被删除的元素的值会储存在 $shifted 变量里面，它的值是： 
 
 
 
$shifted"; 
 
 
 
?＞ 
 

The result is as follows:

0 : orange

1 : banana

2 : Peach

3 : pear

Finally, the value of the element just deleted by the PHP function array_shift() It will be stored in the $shifted variable, and its value is: apple.