In CentOS 6.3, an error is reported when the JSON module is compiled and installed in PHP.

In CentOS 6.3, an error is reported when the JSON module is compiled and installed in PHP.

An error occurred while installing the JSON module when I set up the monitoring system. For CentOS 6.3 In PHP5.3, The ZVAL_DELREF symbol is unknown...
# Warning: PHP Startup: Unable to load dynamic library '/home/json/json-1.2.1/modules/json. so '-/home/json/json-1.2.1/modules/json. so: undefined symbol: ZVAL_DELREF in Unknown on line 0

The php version is used as the cause. The solution is as follows:

# Tar xf json-1.2.1.tgz
# Cd json-1.2.1
# Pwd
/Root/desktop/json-1.2.1
# Vim JSON_parser.c
# Define ZVAL_DELREF Z_DELREF_P // This symbol is not supported when PHP5.3 is installed in rpm. You need to manually add the symbol and install it during compilation. Do not remove the # symbol before it. Just add it to the front of the file.

# Phpize // If the phpize command is not available, use yum to install the php-devel package
#./Configure
# Make & make install
# Find/-name * json. so // check whether the json module exists
/Usr/lib64/php/modules/json. so
# Vim/etc/php. ini // Add the following lines
Extension = json. so
# Vim/etc/php. d/json. ini // create the json. ini file and add the following two lines
; Enable snmp extension module
Extension = json. so

Test whether php loads the json module:
1) run the php-m command to check whether the json module has been loaded by php.
# Php-m
Json // view the printed Module

2) use the php test page to view the verification

# Vim/var/www/html/index. php // create a php browser page and add the following content

<? Php
Phpinfo ();
?>

When you log on to http: // 127.0.0.1/index. php In the browser, the following content also proves that the installation and loading are successful.

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Send XML and JSON data asynchronously in Struts

Compiling and code testing of the JSON library in Linux

JQuery retrieves JSON data [$. getJSON method]

Convert form data into JSON strings using jQuery and JSON packages

Parse JSON configuration file in C Language

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