WP Plugin – Array

[i0nyy]

Hello. I want to create a WP Plugin and I have a problem.

The people that will use the plugin can configure the plugin from the dashboard. In the dashboard they can enter id`s of some posts. e.g: 1, 324, 34

i.e:

$post_id = 1;
$posts_for_plugin = “1,324.34”;

I need something like

if ($post_id is somewhere in $posts_for_plugin)

{

return something;

}else{

return something else;

}

If it was a single value it would be something like

if ($post_id ==$posts_for_plugin )

but with more than one value, I dont`t know what to do.

I tried using

array($posts_for_plugins)

but the array is something like

array[0] = 1, 324, 34

so it`s useless

Hope anyone understood an can help me.
Thanks!

[Bob]

You can use the in_array() function for that. Here’s an example:

$post_id = 1;

$posts_for_plugin = array(1,324,34);



if ( in_array($post_id, $posts_for_plugin) ) {

echo "Yep, it's in the array";

}

else	{

echo "Sorry, not in array";

}



?>

The in_array function has 2 parameters here (you can also set a third). The first parameter is the string you’re looking for in the array, which is $post_id here. The second parameter is the array in which the first parameter has to be found, here that is $posts_for_plugin. The second parameter ofcourse has to be an array.

[i0nyy]

The $posts_for_plugins values will be set from the dashboard, so

$posts_for_plugin will be something like: e>$posts_for_plugin = "1,324.34";

if i try to insert $posts_for_plugin in an array it won`t work…

How can i make this:

$posts_for_plugin = "1,324.34";

to be an array?

[Bob]

Can’t you just do this, just add array(…) to it? Like this:

$posts_for_plugin = array(1,324,34);

I don’t know for sure though, I don’t know a whole lot about PHP.

Also, how exactly are they set from the dashboard? Perhaps you can make it so that it will be inserted in an array immediately?

[willB]

If you use explode():

$string = "1,324,34";

$posts_for_plugin = explode(',', $string);

You can pretty much leave your code that is getting the string from the dashboard the same.
So I guess in full if would be something like:

$post_id = 1;

$string = "1,324,34";

$posts_for_plugin = explode(',', $string);



if ( in_array($post_id, $posts_for_plugin) )

{

echo "Yep, it's in the array";

}

else

{

echo "Sorry, not in array";

}

[Author]

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