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<?php function isGif($url) { $url = is_array($url) && !empty($url)? $url[0] : $url; return $url && strlen($url) !== 0 && strtolower(substr($url, -4)) === '.gif'; } var_dump(isGif([])); var_dump(isGif(['test.gif'])); var_dump(isGif(['test.jpeg']));
Output for git.master, git.master_jit, rfc.property-hooks
bool(false) bool(true) bool(false)

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