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将PHP程序中返回的JSON格式数据用gzip压缩输出的方法

Jun 06, 2016 pm 07:33 PM
gzip json php compression data Format program return

1.使用压缩与不使用压缩的HTTP输出比较 2.开启gzip 利用apache mod_deflate module 开启gzip 开启方法: sudo a2enmod deflatesudo /etc/init.d/apache2 restart 关闭方法: sudo a2dismod deflatesudo /etc/init.d/apache2 restart 3.设置需要gzip压缩输出

1.使用压缩与不使用压缩的HTTP输出比较

201633154618959.jpg (447×226)

2.开启gzip

利用apache mod_deflate module 开启gzip
开启方法:

sudo a2enmod deflate
sudo /etc/init.d/apache2 restart

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关闭方法:

sudo a2dismod deflate
sudo /etc/init.d/apache2 restart

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3.设置需要gzip压缩输出的类型

json的输出类型是application/json,所以可以这样设置
在httpd.conf的中加入

<IfModule mod_deflate.c>
AddOutputFilterByType DEFLATE application/json
</IfModule>

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<&#63;php
$data = array(
  array('name'=>'one','value'=>1),
  array('name'=>'two','value'=>2),
  array('name'=>'three','value'=>3),
  array('name'=>'four','value'=>4),
  array('name'=>'five','value'=>5),
  array('name'=>'six','value'=>6),
  array('name'=>'seven','value'=>7),
  array('name'=>'eight','value'=>8),
  array('name'=>'nine','value'=>9),
  array('name'=>'ten','value'=>10),
);

header('content-type:application/json');
echo json_encode($data);
&#63;>

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设置gzip前输出:

201633154714151.jpg (346×83)

设置gzip后输出:

201633154732511.jpg (334×99)

4.单个json使用gzip压缩输出

设置AddOutputFilterByType DEFLATE application/json后,所有json格式的数据输出都将使用gzip压缩输出。
如果只想某一个json使用gzip压缩输出,其他不需要,可以使用ob_start();方法来实现。

首先不需要设置AddOutputFilterByType,然后在代码最开始位置加入ob_start('ob_gzhandler');

<&#63;php
ob_start('ob_gzhandler');

$data = array(
  array('name'=>'one','value'=>1),
  array('name'=>'two','value'=>2),
  array('name'=>'three','value'=>3),
  array('name'=>'four','value'=>4),
  array('name'=>'five','value'=>5),
  array('name'=>'six','value'=>6),
  array('name'=>'seven','value'=>7),
  array('name'=>'eight','value'=>8),
  array('name'=>'nine','value'=>9),
  array('name'=>'ten','value'=>10),
);

header('content-type:application/json');
echo json_encode($data);
&#63;>
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