Safe Function Call for WordPress 1.1

Safely and easily call functions that may not be available (such as those provided by a plugin that gets deactivated).Assuming you had something like this in a template:If you deactivated the plugin that provided list_cities(), your site would generate an error when that template is accessed.You can instead use _sfc(), which is provided by this plugin to call other functions, like so:That will simply do nothing if the list_cities() function is not available.If you'd rather display a message when the function does not exist, use _sfcm() instead, like so:In this case, if list_cities() is not available, the text "The cities listing is temporarily disabled." will be displayed.If you'd rather call another function when the function does not exist, use _sfcf() instead, like so:In the event you want to safely call a function and echo its value, you can use _sfce() like so:Which is roughly equivalent to doing :

Requirements:	No special requirements
Platforms:	PHP
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