PHP用for循环遍历数组，如何能把数组中所有的2变成红色?代码如下: $a = array(1,

PHP用for循环遍历数组，如何能把数组中所有的2变成红色?代码如下: $a = array(1,

$a = array(1,2,3,2,4,5,2,3,2,3,4,1,2,3,4,2,3,4,8,2,3,8,7,4,6,1,2,4,1,2,3,4,8,7,1,6,2,3,9,4,8,1,2,3,4,9,1,8,2,3,4,9,8,1,2,6,3,4,1,2,3,4,1);

for($i=0;$iif($a[$i]==2){
echo "".$a[$i].",";
}else{
echo "".$a[$i].",";
}
}
?>给他加一个标签，然后设置color颜色就可以了，结果如下：

操作数据推荐用：foreach();

$a = array(1,2,3,2,4,5,2,3,2,3,4,1,2,3,4,2,3,4,8,2,3,8,7,4,6,1,2,4,1,2,3,4,8,7,1,6,2,3,9,4,8,1,2,3,4,9,1,8,2,3,4,9,8,1,2,6,3,4,1,2,3,4,1);


foreach($a as $k){
if($k==2){
echo "".$k.",";
}else{
echo "".$k.",";
}
}
?>