[SOLVED] How would I do this?

[Unseeeen]

So basically I have 2 lists of information.

 

ex:

list 1- bob, joe, dan, billy

list 2- paul, joe, jim, mike

 

After putting both of those lists into 2 text boxes, how would I make it so only the common ones show up? In this case joe would be the only name that should show up.

 

Thanks.

[ToonMariner]

make arrays from both lists using explode();

array_intersect(); will then tell you which elements match up - use that result to put the matching name(s) inot the list boxes you need.

[teng84]

$array1= explode(', ','bob, joe, dan, billy');
$array2= explode(', ','paul, joe, jim, mike');
$result = array_intersect($array1, $array2);
print_r($result);

[Unseeeen]

Thanks guys, that helps a lot. Here's my code...

 

<form action="" method="post">
<textarea name="first"></textarea><br>
<textarea name="second"></textarea>
<input value="Submit" type="submit">

</form>
<?
$first = $_POST['first'];
$second = $_POST['second'];


$blah = explode(" ", $first);
$blahtwo = explode(" ", $second);

$result = array_intersect($blah, $blahtwo);
print_r($result);
?> 

 

It's simple, the way I like it. Anyways, how would I echo the info without having that "Array ( [0] => joe )" thing at the end?

[teng84]

first use

$x=count($result); this count how many matches found

then loop

for($i=0; $1<$x; $i++)

{

    echo $result[$i];// assign in the variable

}

 

but if your sure that there will only be one match

echo $result[0]; this is how to replace the print_r

[Unseeeen]

There can only be one match per person, but there will be multiple people.

 

My code works exactly how I'd like it. The result just annoys me though.

[teng84]

use this

for($i=0; $1<$x; $i++)
{
    echo $result[$i];// assign in the variable
}

and what annoys you

[Unseeeen]

I get an error with that...

 

Parse error: syntax error, unexpected T_LNUMBER, expecting T_VARIABLE or '$'

 

I don't really understand what that's trying to do anyways.

 

But what I mean by it annoys me, the result is in an array. I don't want it in an array.

[teng84]

<form action="" method="post">
<textarea name="first"></textarea><br>
<textarea name="second"></textarea>
<input value="Submit" type="submit">

</form>
<?
$first = $_POST['first'];
$second = $_POST['second'];
$blah = explode(" ", $first);
$blahtwo = explode(" ", $second);

$result = array_intersect($blah, $blahtwo);
for($i=0; $i<count($result); $i++)
{
    echo $result[$i];// assign in the variable
}

[Unseeeen]

That's awesome. Thanks for all the help

[teng84]

time marking this as solved