How to get only the first two elements of a php array

How to take only the first two elements of the php array: 1. Use the array_splice() function, the syntax "array_splice($arr,0,2)"; 2. Use the array_slice() function, the syntax "array_slice( $arr,0,2)".

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

Only take the first two of the php array Element methods

Method 1: Use array_splice() function

<?php
header("Content-type:text/html;charset=utf-8");
$arr = array(10,12,20,25,24);
echo "原数组：";
var_dump($arr); 

echo "截取的数组片段：";
$result = array_splice($arr,0);  //截取从下标0开始的全部数组元素
var_dump($result);

$arr = array(10,12,20,25,24);
$result = array_splice($arr,0,2);//截取从下标0开始的两个元素
var_dump($result);
?>

Output:

Method 2: Use array_slice() function

<?php
header("Content-type:text/html;charset=utf-8");
$arr = array(12,20,25,24,29,"2");
echo "原数组：";
var_dump($arr); 

echo "截取的数组片段：";
$result = array_slice($arr,0); //截取从下标2开始的全部数组元素
var_dump($result);

$result = array_slice($arr,0,2); //截取从下标0开始的两个元素
var_dump($result);

?>

Output:

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