How to remove multiple arrays and keep one in php

How to remove multiple PHP arrays and keep one: 1. Create a PHP sample file; 2. Create the "function formatArray($array) {...}" method; 3. Pass "for($ i=0;$i

The operating environment of this tutorial: Windows 7 system, PHP version 8.1, Dell G3 computer.

php Remove multiple arrays and keep one?

php deletes the same elements in the array and keeps only one same element

We have introduced N methods for deleting duplicate arrays. Today’s example is a little different, which is to delete the array. Among the same elements, only one same element is retained. Let’s take an example below. The code is as follows:

<?php 
// 删除数组中相同元素，只保留一个相同元素 
function formatArray($array) 
{ 
sort($array); 
$tem = ”; 
$temarray = array(); 
$j = 0; 
for($i=0;$i<count($array);$i++) 
{ 
if($array[$i]!=$tem) 
{ 
$temarray[$j] = $array[$i]; 
$j++;//开源代码phpfensi.com 
} 
$tem = $array[$i]; 
} 
return $temarray; 
} 
//测试 调用函数 
$array = array(‘aa’,&#39;bb’,&#39;aa’,3,4,5,5,5,5,’bc’); 
$arr = formatArray($array); 
print_r($arr); 
?>

Related introduction:

sort() function sorts the numerical array in ascending order.

Tip: Please use the rsort() function to sort the numerical array in descending order.

Grammar

sort(array,sortingtype);

Recommended study: "PHP Video Tutorial"

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