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Can. 5 ways to obtain: 1. Use the "$array name [subscript]" statement to obtain; 2. Use array_shift(), the syntax "array_shift(array)"; 3. Use array_pop() to obtain, the syntax "array_pop(array)" ; 4. Use array_slice() to obtain, the syntax is "array_slice(array, subscript, 1)"; 5. Use array_splice() to obtain, the syntax is "array_splice(array, subscript, 1)".
The operating environment of this tutorial: windows7 system, PHP version 8.1, DELL G3 computer
php can get an item of the array value.
Method 1: Use the "$array name[subscript]" statement to obtain
"$array name[subscript]
"You can access an element of the specified subscript in the array
<?php header("Content-type:text/html;charset=utf-8"); $arr= array("香蕉","苹果","梨子","橙子","橘子","榴莲"); var_dump($arr); echo "数组下标为0的一个元素:".$arr[0]."<br>"; echo "数组下标为2的一个元素:".$arr[2]."<br>"; echo "数组下标为3的一个元素:".$arr[3]."<br>"; ?>
Method 2: Use the array_shift() function to obtain
array_shift( ) function will delete the first element in the array and then return the first deleted array element; if the array is empty, NULL will be returned.
<?php header("Content-type:text/html;charset=utf-8"); $arr= array("香蕉","苹果","梨子","橙子","橘子","榴莲"); var_dump($arr); //获取数组中的第一个元素 $first = array_shift($arr); echo "数组的第一个元素为:".$first; ?>
Method 3: Use array_pop() function to obtain
array_pop() function will delete the last element in the array, Then returns the last deleted array element; if the array is empty, NULL will be returned.
<?php header("Content-type:text/html;charset=utf-8"); $arr= array("香蕉","苹果","梨子","橙子","橘子","榴莲"); var_dump($arr); //获取数组中的最后一个元素 $last= array_pop($arr); echo "数组的最后一个元素为:".$last; ?>
Method 4: Use array_slice() function to obtain
array_slice() function is provided by PHP to intercept arrays A function that extracts a fragment from an array.
Use the array_slice() function to obtain the element at the specified position (somewhat similar to method 1)
<?php header("Content-type:text/html;charset=utf-8"); $arr= array("香蕉","苹果","梨子","橙子","橘子","榴莲"); var_dump($arr); echo "截取一个数组元素:"; $result = array_slice($arr,2,1); //截取下标为2的数组元素 var_dump($result); $result = array_slice($arr,1,1); //截取下标为1的数组元素 var_dump($result); $result = array_slice($arr,0,1); //截取下标为0的数组元素 var_dump($result); ?>
Method 5: Use array_splice() Function Get
array_splice() function can when deleting some elements of the array, form these deleted elements into a new array, and then return this new array.
<?php header("Content-type:text/html;charset=utf-8"); $arr= array("香蕉","苹果","梨子","橙子","橘子","榴莲"); var_dump($arr); echo "截取一个数组元素:"; $result = array_splice($arr,2,1); //截取下标为2的数组元素 var_dump($result); ?>
Note: The array_splice() function will change the original array.
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