PHP function constant()
/ public function filter($in, $out, &$consumed, $closing) { }
Availability in versions: PHP 4.0.4
Parameters
| Parameter | Data type | Default value | Note |
|---|---|---|---|
$name |
string |
not | The constant name. |
Return values
- int
The filter() method must return one of three values upon completion.
Return Value Meaning PSFS_PASS_ON Filter processed successfully with data available in the outbucket brigade.PSFS_FEED_ME Filter processed successfully, however no data was available to return. More data is required from the stream or prior filter. PSFS_ERR_FATAL (default) The filter experienced an unrecoverable error and cannot continue. / public function filter($in, $out, &$consumed, $closing) { }
/**
- bool / public function onCreate() { }
/**
- string
- mixed the value of the constant, or &null; if the constant is not defined.
Other resources
- https://www.php.net/manual/en/php-user-filter.filter.php
- https://www.php.net/manual/en/php-user-filter.oncreate.php
- https://www.php.net/manual/en/php-user-filter.onclose.php / public function onClose() { }
}
/** Instances of Directory are created by calling the dir() function, not by the new operator. / class Directory {
/**
- https://www.php.net/manual/en/directory.close.php / public function close ( $dir_handle ) {}
/** Rewind directory handle. Same as rewinddir(), only dir_handle defaults to $this.
- https://www.php.net/manual/en/directory.rewind.php / public function rewind ( $dir_handle ) {}
/** Read entry from directory handle. Same as readdir(), only dir_handle defaults to $this.
- https://www.php.net/manual/en/directory.read.php / public function read ( $dir_handle) { }
}
/** Returns the value of a constant
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