Saving an array with update_post_meta bug

[Pulsar_Media]

Hi,

I came across a rather strange bug using update_post_meta. I noticed it after i tried saving a multi-dimensional array.

Basically what happens is my array was getting wrapped inside of a new array each time i saved it to the database using the "update_post_meta" function.

I am guessing this might have something to do with the maybe_serialize function that update_post_meta supposedly uses when saving data?

Anyways, i wanted to bring this to your attention because this bug drove me nuts for several days trying to figure out what the hell was going on.

It was after i manually serialized my array and saved the data that i noticed my serialized string was being returned in an array using get_post_meta.

Anyways, im pretty sure this is some kind of bug...please look into this.

Thanks.

[dd32]

Hi @Pulsar_Media and welcome to Trac

Would you be able to post a piece of code that demonstrates the behaviour you're seeing?

Also, keep in mind that you can have multiple meta_key's of the same name for one post, ensure you're setting the 3rd parameter of get_post_meta() to true if you only expect a single meta value to exist for that meta key.

[Pulsar_Media]

well slap me silly...turns out not passing in the third parameter as true wraps your value in an array...otherwise it doesn't........son of a bitch!

thanks for pointing that out...all good now :)

[dd32]

FWIW it'll return an array of multiple values in an example such as this:

add_post_meta( 1, 'mykey', 'value1' );
add_post_meta( 1, 'mykey', 'value2' );

$array_of_values = get_post_meta( 1, 'mykey' );

[Pulsar_Media]

yea i understand how it works now...thx again.