<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="X-UA-Compatible" content="ie=edge" />
<title>Document</title>
</head>
<body>
</body>
</html>
<script type="text/javascript">
function attr_quchong(tt,type){
var newattr = [];
if(type == 1){
for(var i = 0;i<tt.length;i++){
if(newattr.indexOf(tt[i]) == -1){
newattr.push(tt[i]);
}
}
}else if(type ==2){
for(var i = 0;i<tt.length;i++){
var attr = [];
for(var j = 0;j<tt[i].length;j++){
if(attr.indexOf(tt[i][j]) == -1){
attr.push(tt[i][j]);
}
}
newattr.push(attr);
}
}
return newattr;
}
</script>
<?php
//php数组去重
$attr =[[1,2,3,4,5,4,3],[1,2,3,4,5,4,3],[1,2,3,4,5,4,3]];
$erattr = [];
for($j=0;$j<count($attr);$j++){
$newattr = [];
for($i=0;$i<count($attr[$j]);$i++){
if(!in_array($attr[$j][$i],$newattr)){//$attr[$j][$i]不在$newattr里
array_push($newattr,$attr[$j][$i]);//把$attr[$j][$i]推到$newattr里
}
}
$erattr[$j] = $newattr;
}
var_dump($erattr);
?>