Get the contents of the active output buffer and turn it off

# ob_get_clean

(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)

ob_get_clean — Get the contents of the active output buffer and turn it off

### Description

ob_get_clean(): string|false

This function calls the output handler (with the `PHP_OUTPUT_HANDLER_CLEAN` and `PHP_OUTPUT_HANDLER_FINAL` flags), discards it's return value, returns the contents of the active output buffer and turns off the active output buffer.

ob_get_clean() will fail without an active output buffer started with the `PHP_OUTPUT_HANDLER_REMOVABLE` flag.

ob_get_clean() will discard the contents of the active output buffer even if it was started without the `PHP_OUTPUT_HANDLER_CLEANABLE` flag.

### Parameters

This function has no parameters.

### Return Values

Returns the contents of the active output buffer on success or `false` on failure.

Caution

ob_get_clean() will return false but will not generate an `E_NOTICE` if there is no active output buffer.

### Errors/Exceptions

If the function fails it generates an `E_NOTICE`.

### Examples

Example #1 A simple ob_get_clean() example

`<?php
ob_start();
echo "Hello World";
$out = ob_get_clean();
$out = strtolower($out);
var_dump($out);
?>`

The above example will output:

    string(11) "hello world"

### See Also

- ob_start() - Turn on output buffering
- ob_get_contents() - Return the contents of the output buffer
- ob_clean() - Clean (erase) the contents of the active output buffer
- ob_end_clean() - Clean (erase) the contents of the active output buffer and turn it off
- ob_get_flush() - Flush (send) the return value of the active output handler, return the contents of the active output buffer and turn it off

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