chinmay.sahoo
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PHP has a number of functions for checking whether a fi le or directory exists and if so its status. The main ones are:
• fi le_exists. This takes a relative fi le or directory name as its argument and returns true if either a fi le or a directory with that name and path exists. Otherwise it returns false.
• is_fi le. This takes a relative fi le name as its argument and returns true if a file with that name and path exists. Otherwise it returns false.
• is_dir. This takes a relative directory name as its argument and returns true if a directory with that name and path exists. Otherwise it returns false.
• is_readable. This takes a relative fi le or directory name as its argument and returns true if a fi le or directory with that name and path exists and is readable.
Otherwise it returns false.
• is_writable. This takes a relative fi le or directory name as its argument and returns true if a fi le or directory with that name and path exists and is writable. Otherwise it returns false.
• is_writeable. This is an alias for function is_writable.
• fi le_exists. This takes a relative fi le or directory name as its argument and returns true if either a fi le or a directory with that name and path exists. Otherwise it returns false.
• is_fi le. This takes a relative fi le name as its argument and returns true if a file with that name and path exists. Otherwise it returns false.
• is_dir. This takes a relative directory name as its argument and returns true if a directory with that name and path exists. Otherwise it returns false.
• is_readable. This takes a relative fi le or directory name as its argument and returns true if a fi le or directory with that name and path exists and is readable.
Otherwise it returns false.
• is_writable. This takes a relative fi le or directory name as its argument and returns true if a fi le or directory with that name and path exists and is writable. Otherwise it returns false.
• is_writeable. This is an alias for function is_writable.
