Check if class exists before loading it

mustardBees / cmb-field-select2

Select2 field type for Custom Metaboxes and Fields for WordPress

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Check if class exists before loading it #44

Open pablo-sg-pacheco opened 7 years ago

pablo-sg-pacheco commented 7 years ago

I'm using this library on separated projects and it was causing this error: PHP Fatal error: Cannot declare class PW_CMB2_Field_Select2, because the name is already in use in ...

This pull request fixes that

I've just added this code

if ( ! class_exists( 'PW_CMB2_Field_Select2' ) ) {
}