Why does the buffer not output anything when called more than once?

Question

I have a PHP file called test.php that contains the following code.

<?php
$text = 'Grrrrr';
ob_start();
require_once('testinc.php');
$html2 = ob_get_clean();
echo '<pre>';
var_dump($html2);
echo '</pre>';


$text = 'wtf';
ob_start();
require_once('testinc.php');
$html2 = ob_get_clean();
echo '<pre>';
var_dump($html2);
echo '</pre>';


testing('blah');
testing('123');

function testing($text) {
    ob_start();
    require_once('testinc.php');
    $html = ob_get_clean();
    echo '<pre>';
    var_dump($html);
    echo '</pre>';
}

The testinc.php file contains the following code.

<?php
echo $text;
?>
testing

When I run the code, the output looks like this.

string(13) "Grrrrrtesting"
string(0) ""
string(0) ""
string(0) ""

Why is the buffer not working other than the first time and how can I get the output to look like this?

string(13) "Grrrrrtesting"
string(10) "wtftesting"
string(11) "blahtesting"
string(10) "123testing"

have you read documentation for ob_get_clean and require_ONCE? — Iłya Bursov, Apr 11 '17 at 21:58
Really?! Changing require_once() to include() solves everything. — Casey, Apr 11 '17 at 22:07
using a lot of output buffering usually means your structuring your code wrong — , Apr 11 '17 at 22:14

score 0 · Answer 1 · answered Apr 11 '17 at 22:08

0

The solution is to not use require_once(). Changing the code to include() and it all works out fine.

answered Apr 11 '17 at 22:08

Casey

19
2

Why does the buffer not output anything when called more than once?

1 Answers1