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# PEAR_Config::writeConfigFile()

PEAR_Config::writeConfigFile() -- Write data into config layer from file

## Synopsis

    require_once 'PEAR/config.php';

``bool PEAR_Config::writeConfigFile` ([string $file = `NULL` [, bool $layer = 'user']])`

## Description

Writes data into a config layer from a file.

## Parameter

string `$file`

  file to read from

boolean `$layer`

  whether to overwrite existing data

## Return value

`bool` - Returns `TRUE` on success, PEAR_Error on failure.

## Throws

Table 27-1. Possible PEAR_Error values

Error code | Error value | Meaning | Solution
--- | --- | --- | ---
| "" |  |

## Note

This function can not be called statically.

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PEAR_Config::validConfiguration() | Up | PEAR_Dependency