Check to see if something exists before you call some function / class / method in your WordPress functions.php
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| <?php | |
| if ( function_exists( 'function_name' ) ) { | |
| //... do something ... | |
| } | |
| if ( class_exists( 'Class_Name' ) ) { | |
| //... do something ... | |
| } | |
| // You can also use the negative ! | |
| if ( !function_exists( 'function_name' ) ) { | |
| //... do something ... | |
| } | |
| if ( !class_exists( 'Class_Name' ) ) { | |
| //... do something ... | |
| } | |
| /** | |
| * Example: Manually load Jetpack's Sharing buttons in your theme | |
| * | |
| */ | |
| if ( class_exists( 'Sharing_Service' ) ) { | |
| echo sharing_display(); | |
| } |
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