fopen

Function • Params changed in PHP 8.0

Opens file or URL.

PHP 5
PHP 7
PHP 8.0
Improved
PHP 8.1
PHP 8.2
PHP 8.3
PHP 8.4
PHP 8.5

fopen Function synopsis

fopen(
    string $filename,
    string $mode,
    bool $use_include_path = false,
    $context = null
  )

Parameters

$filename

Typestring

If $filename is of the form "scheme://...", it is assumed to be a URL and PHP will search for a protocol handler (also known as a wrapper) for that scheme. If no wrappers for that protocol are registered, PHP will emit a notice to help you track potential problems in your script and then continue as though $filename specifies a regular file.

$mode

Typestring

The $mode parameter specifies the type of access you require to the stream. It may be any of the following:

$use_include_path

OptionalTypeboolDefault valuefalse

The optional third $use_include_path parameter can be set to true if you want to search for the file in the include_path too.

$context

OptionalDefault valuenull

Changes to the fopen Function

PHP 8.0

  • Parameter type added for parameter #1 ($filename): string
  • Parameter type added for parameter #2 ($mode): string
  • Parameter type added for parameter #3 ($use_include_path): bool
  • Parameter default value added for position #3 ($use_include_path): false
  • Parameter default value added for position #4 ($context): null
  fopen(
-     $filename,
+     string $filename,
-     $mode,
+     string $mode,
-     $use_include_path,
+     bool $use_include_path = false,
-     $context
+     $context = null
    )

fopen Function Availability

PHP VersionAvailability
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