Related content of php json data output using gzip compression

1. Comparison of HTTP output with compression and without compression

2. Turn on gzip

Use apache mod_deflate module to turn on gzip
Start method:

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

Close method:

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

3. Set the type of output that requires gzip compression

The output type of json is application /json, so you can set it like this
Add <pre class="prettyprint">&lt;IfModule mod_deflate.c&gt;AddOutputFilterByType DEFLATE application/json&lt;/IfModule&gt;</pre><pre class="prettyprint">&lt;?php$data = array( array(&amp;#39;name&amp;#39;=&gt;&amp;#39;one&amp;#39;,&amp;#39;value&amp;#39;=&gt;1), array(&amp;#39;name&amp;#39;=&gt;&amp;#39;two&amp;#39;,&amp;#39;value&amp;#39;=&gt;2), array(&amp;#39;name&amp;#39;=&gt;&amp;#39;three&amp;#39;,&amp;#39;value&amp;#39;=&gt;3), array(&amp;#39;name&amp;#39;=&gt;&amp;#39;four&amp;#39;,&amp;#39;value&amp;#39;=&gt;4), array(&amp;#39;name&amp;#39;=&gt;&amp;#39;five&amp;#39;,&amp;#39;value&amp;#39;=&gt;5), array(&amp;#39;name&amp;#39;=&gt;&amp;#39;six&amp;#39;,&amp;#39;value&amp;#39;=&gt;6), array(&amp;#39;name&amp;#39;=&gt;&amp;#39;seven&amp;#39;,&amp;#39;value&amp;#39;=&gt;7), array(&amp;#39;name&amp;#39;=&gt;&amp;#39;eight&amp;#39;,&amp;#39;value&amp;#39;=&gt;8), array(&amp;#39;name&amp;#39;=&gt;&amp;#39;nine&amp;#39;,&amp;#39;value&amp;#39;=&gt;9), array(&amp;#39;name&amp;#39;=&gt;&amp;#39;ten&amp;#39;,&amp;#39;value&amp;#39;=&gt;10), ); header(&amp;#39;content-type:application/json&amp;#39;);echo json_encode($data);?&gt;</pre>

to

in httpd.conf and set the output before gzip:

Output after setting gzip:

##4. A single json is output using gzip compression

After setting AddOutputFilterByType DEFLATE application/json, all data output in json format will be output using gzip compression.

If you only want to use gzip compression for a certain json and do not need the others, you can use the ob_start(); method to achieve this.

There is no need to set AddOutputFilterByType first, and then add

ob_start('ob_gzhandler');

<?phpob_start(&#39;ob_gzhandler&#39;);$data = array(    array(&#39;name&#39;=>&#39;one&#39;,&#39;value&#39;=>1),    array(&#39;name&#39;=>&#39;two&#39;,&#39;value&#39;=>2),    array(&#39;name&#39;=>&#39;three&#39;,&#39;value&#39;=>3),    array(&#39;name&#39;=>&#39;four&#39;,&#39;value&#39;=>4),    array(&#39;name&#39;=>&#39;five&#39;,&#39;value&#39;=>5),    array(&#39;name&#39;=>&#39;six&#39;,&#39;value&#39;=>6),    array(&#39;name&#39;=>&#39;seven&#39;,&#39;value&#39;=>7),    array(&#39;name&#39;=>&#39;eight&#39;,&#39;value&#39;=>8),    array(&#39;name&#39;=>&#39;nine&#39;,&#39;value&#39;=>9),    array(&#39;name&#39;=>&#39;ten&#39;,&#39;value&#39;=>10),
);

header(&#39;content-type:application/json&#39;);echo json_encode($data);?>

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