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’,'bb’,'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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