is_readable
Function • Params and return types changed in PHP 8.0
Tells whether a file exists and is readable.
is_readable Function synopsis
is_readable(string $filename): boolParameters
$filename
Typestring
Path to the file.
Return value
Typebool
Returns true if the file or directory specified by
$filename exists and is readable, false otherwise.
Changes to the is_readable Function
PHP 8.0
- Return type added:
bool - Parameter type added for parameter #1 (
$filename):string
- is_readable($filename)
+ is_readable(string $filename): boolis_readable Function Availability
is_readable Function Availability| PHP Version | Availability |
|---|---|
| PHP 8.5Future Release | Yes |
| PHP 8.4Upcoming Release | Yes |
| PHP 8.3Supported (Latest) | Yes |
| PHP 8.2Supported | Yes |
| PHP 8.1Security-Fixes Only | Yes |
| PHP 8.0Unsupported | Yes |
| PHP 7.4Unsupported | Yes |
| PHP 7.3Unsupported | Yes |
| PHP 7.2Unsupported | Yes |
| PHP 7.1Unsupported | Yes |
| PHP 7.0Unsupported | Yes |
| PHP 5.6Unsupported | Yes |
| PHP 5.5Unsupported | Yes |
| PHP 5.4Unsupported | Yes |
| PHP 5.3Unsupported | Yes |