July 5, 2011 
Definition:
function sanitize_meta( $meta_key, $meta_value, $meta_type ) {}
Sanitize meta value
Parameters
- string $meta_key: Meta key
- mixed $meta_value: Meta value to sanitize
- string $meta_type: Type of meta
Return values
returns:Sanitized $meta_value
Defined filters
- sanitize_{$meta_type}_meta_{$meta_key}
apply_filters( "sanitize_{$meta_type}_meta_{$meta_key}", $meta_value, $meta_key, $meta_type )
Source code
function sanitize_meta( $meta_key, $meta_value, $meta_type ) {
return apply_filters( "sanitize_{$meta_type}_meta_{$meta_key}", $meta_value, $meta_key, $meta_type );
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A HitchHackers guide through WordPress 
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