php determines whether directory exists

PHP determines whether a file or directory exists

file_exists: determines whether a file exists

$file = "check.txt"; if(file_exists($file)) { echo "当前目录中，文件".$file."存在"; } else { echo "当前目录中，文件".$file."不存在"; }

is_dir: Determine whether the directory exists

$dir = "c:/datacheck"; if(is_dir($dir)) { echo "当前目录下，目录".$dir."存在"; } else { echo "当前目录下，目录".$dir."不存在"; }

Note: The result of this function will be cached. Please use clearstatcache() to clear the cache.

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