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<?php if (!function_exists('interface_exists')) { die('Days long-since passed.'); } if (interface_exists('Throwable')) { foreach (get_declared_classes() as $cn) { $implements = class_implements($cn); if (isset($implements['Throwable'])) { echo sprintf("Ah yes, the infamous Throwable, '%s'.", $cn); die(); } } echo "We have only heard legends of this so-called 'Throwable'"; } else { echo "What is a 'Throwable'?"; }
Output for git.master, git.master_jit, rfc.property-hooks
Ah yes, the infamous Throwable, 'Exception'.

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