Discuss how to enable gzip page compression in PHP

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Discuss how to enable gzip page compression in PHP_PHP Tutorial

Jul 21, 2016 pm 03:07 PM

gzip php one code built-in function compression copy Example turn on Discuss use of Example page

Example 1 (using PHP’s built-in compression function):

Copy code The code is as follows:

<?PHP 
if(Extension_Loaded('zlib')) Ob_Start('ob_gzhandler'); 
Header("Content-type: text/html"); 
?> 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text /html; charset=gb2312" /> 
<title>Untitled Document</title> 
</head> 
<body> 
<?php 
 for($i=0;$i<10000;$i++){ 
echo 'Hello World!'; 
} 
?> 
</body> 
</ html> 
<?PHP 
if(Extension_Loaded('zlib')) Ob_End_Flush(); 
?>

Example 2 (from Write function):

Copy code The code is as follows:

<?php ob_start('ob_gzip '); ?> 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional .dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content- Type" content="text/html; charset=gb2312" /> 
<title>Untitled Document</title> 
</head> 
<body> 
&lt ;/body> 
</html> 
<?php 
ob_end_flush(); 
//Compression function
function ob_gzip($content){ 
if(!headers_sent ()&&extension_loaded("zlib")&&strstr($_SERVER["HTTP_ACCEPT_ENCODING"],"gzip")){ 
$content = gzencode($content,9); 
header("Content-Encoding: gzip" ); 
header("Vary: Accept-Encoding"); 
header("Content-Length: ".strlen($content)); 
} 
return $content; 
} 
?>

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