Php rotation of existing array keys-php Tutorial

Php replaces the existing array key value. This post was last edited by html5cloud in 2013-02-2513: 57: 00 & nbsp; foreach ($ arry1 & nbsp; as & nbsp; $ key & nbsp; & gt; & nbsp; $ value) & nbsp ;{& nbsp; if & php replaces existing array key values

This post was last edited by html5cloud at 13:57:00

Foreach ($ arry1 as $ key => $ value ){
If (array_key_exists ($ key, $ arry2 ))
{
$ Arry2 [$ key] = $ value;
}
Else
{
Array_push ($ arry2, "$ key => $ value ");
Ksort ($ arry2 );
}
}

Requirement: if arry2 contains the attribute in arry1, replace the attribute value in arry2 with the attribute value in arry1. if not, add it.
The array is like key => value, for example, arry [a: 1, B: [1, 2].
Why is there a problem with the above code?

------ Solution --------------------
Array_push ($ arry2, "$ key => $ value ");
Change
$ Arry2 [$ key] = $ value ");