Is it possible to get the first element of an array in php?

php can get the first element of the array. PHP provides multiple acquisition methods: 1. Use array_shift() to delete the first element of the array, and return the deleted element, the syntax is "array_shift(array)"; 2. Use array_slice() to intercept the array, and return the first element containing the array. subarray, the syntax is "array_slice(array,0,1)"; 3. Use current() to return the current element, and initially return the first element, the syntax is "current(array)".

The operating environment of this tutorial: windows7 system, PHP8.1 version, DELL G3 computer

php can get the first one in the array element.

php There are many ways to get the first element of the array:

Method 1: Use the array_shift() function

array_shift() function is used to delete the first element in the array and return the deleted first element.

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

echo "数组第一个元素为：".$res ;
?>

Method 2: Use the array_slice() function

array_slice() function is used to intercept the array, that is Extract a fragment from the array

This function can intercept the specified number of array elements starting from the specified position.

Return value: Return the intercepted subarray.

<?php
header("Content-type:text/html;charset=utf-8");
$arr=array(10,12,20,25,24);
echo "原数组：";
var_dump($arr);
$res=array_slice($arr,0,1);

echo "数组第一个元素为：" ;
var_dump($res);
?>

Method 3: Use the current() function

current() can return the value of the current element of the array, initially Points to the first element.

<?php
header("Content-type:text/html;charset=utf-8");
$arr=array(10,12,20,25,24);
echo "原数组：";
var_dump($arr);
echo "数组第一个元素为：".current($arr) ;
?>

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