Array problem using php3

There are two different arrays. How to find out the common elements in two arrays using php3?.

Use the in_array() function to search for values in an array:

$array1=("1","2");
$array2=("2","3","4");

for ($t=0;$t<count($array1);$t++)
{
if (in_array($array[$t],$array2)
{
print "Found one\n";
};
};

Instead of the for loop, you can also use the array_walk function.
Manuals manuals manuals...

PHP 4 is much stronger than PHP 3 with regard to array handling: It has a lot of new, nice array-related functions. Consider upgrading your PHP.

try this function

Array_unique() takes input array and returns a new array without duplicate values. Note that keys are preserved

Dear
i am a beginner to PHPs all my information regarding PHPs is that i have heard of it. will any of you guide me how to start it
See you
Hassan

How to start with PHP:

Step 1: Install PHP
Step 2: Read manual.
Step 3: Play with it! Try things out.

Many of the functions have examples in the manual.
Just try it out.