PHP 8.4.3 Released!

Funções para Control de Saída

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Veja também header() e setcookie().

Índice

  • flush — Descarrega o buffer na saída do sistema
  • ob_clean — Limpa (apaga) o conteúdo do buffer de saída ativo
  • ob_end_clean — Limpa (apaga) o conteúdo do buffer de saída ativo e desliga-o
  • ob_end_flush — Descarrega (envia) o valor de retorno do manipulador de saída ativo e desliga o buffer de saída ativo
  • ob_flush — Descarrega (envia) o valor de retorno do manipulador de saída ativo
  • ob_get_clean — Obtém o conteúdo do buffer de saída ativo e desliga-o
  • ob_get_contents — Retorna o conteúdo do buffer de saída
  • ob_get_flush — Descarrega (envia) o valor de retorno do manipulador de saída ativo, retorna o conteúdo do buffer de saída ativo e desliga-o
  • ob_get_length — Retorna o comprimento do buffer de saída
  • ob_get_level — Retorna o nível de aninhamento do mecanismo de buffer de saída
  • ob_get_status — Obtém status dos buffers de saída
  • ob_implicit_flush — Liga ou desliga o descarregamento implícito
  • ob_list_handlers — Lista todos os manipuladores de saída em uso
  • ob_start — Ativa o buffer de saída
  • output_add_rewrite_var — Adiciona valores de reescritor de URL
  • output_reset_rewrite_vars — Redefine valores de reescritor de URL
adicione uma nota

Notas Enviadas por Usuários (em inglês) 3 notes

up
17
jgeewax a t gmail
17 years ago
It seems that while using output buffering, an included file which calls die() before the output buffer is closed is flushed rather than cleaned. That is, ob_end_flush() is called by default.

<?php
// a.php (this file should never display anything)
ob_start();
include(
'b.php');
ob_end_clean();
?>

<?php
// b.php
print "b";
die();
?>

This ends up printing "b" rather than nothing as ob_end_flush() is called instead of ob_end_clean(). That is, die() flushes the buffer rather than cleans it. This took me a while to determine what was causing the flush, so I thought I'd share.
up
5
Anonymous
15 years ago
You possibly also want to end your benchmark after the output is flushed.

<?php
your_benchmark_start_function
();

ob_start ();
for (
$i = 0; $i < 5000; $i++)
echo
str_repeat ("your string blablabla bla bla", (rand() % 4) + 1)."<br>\n";

<----------
echo
your_benchmark_end_function(); |
ob_end_flush (); ------------------------
?>
up
3
gruik at libertysurf dot fr
20 years ago
For those who are looking for optimization, try using buffered output.

I noticed that an output function call (i.e echo()) is somehow time expensive. When using buffered output, only one output function call is made and it seems to be much faster.
Try this :

<?php
your_benchmark_start_function
();

for (
$i = 0; $i < 5000; $i++)
echo
str_repeat ("your string blablabla bla bla", (rand() % 4) + 1)."<br>\n";

echo
your_benchmark_end_function();
?>

And then :

<?php
your_benchmark_start_function
();

ob_start ();
for (
$i = 0; $i < 5000; $i++)
echo
str_repeat ("your string blablabla bla bla", (rand() % 4) + 1)."<br>\n";

echo
your_benchmark_end_function();
ob_end_flush ();
?>
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