PHP post large Data discovery data loss problem Solving method _php Tutorial

Solution to data loss problem when PHP post large amount of data

This article mainly introduces the PHP post a lot of data to find the solution to the problem of data loss, because the default configuration of the data volume configuration is too small caused by this problem, modify the configuration, the need for friends can refer to the next

Workaround:

In php.ini, change the max_input_vars to 5000.

Cause tracing:

From enctype= "Multipart/form-data"

PHP version 5.6.6

Problem: Partial post data is not received

The source code discovery is caused by max_input_vars configuration in PHP;

The correlation function is Rfc1867_post_handler, and if the length is exceeded, safe_php_register_variable is not called to register the variable

The related stacks are as follows

The code is as follows:

#0 Rfc1867_post_handler (

Content_type_dup=0x7ff85307a5f8 "Multipart/form-data; Boundary= ", '-' ," 306141311912057 ",

ARG=0X7FF85307CCC0) at/tmp/php-5.6.2/main/rfc1867.c:681

#1 0x00000000007a4bb0 in Sapi_handle_post (arg= ) at/tmp/php-5.6.2/main/sapi.c:185

#2 0x00000000007ab72f in Php_default_treat_data (arg=0, str=0x0, DESTARRAY=0X7FF85307CCC0)

at/tmp/php-5.6.2/main/php_variables.c:399

#3 0x0000000000615c91 in Mbstr_treat_data (arg=0, str=0x0, destarray=0x0) at/tmp/php-5.6.2/ext/mbstring/mb_gpc.c:69

#4 0X00000000007AA9FB in Php_auto_globals_create_post (name=0x7ff852f474f0 "_post", name_len=5)

at/tmp/php-5.6.2/main/php_variables.c:741

#5 0x00000000007d63bb in Zend_auto_global_init (auto_global=0x196c950) at/tmp/php-5.6.2/zend/zend_compile.c:6832

#6 0x0000000000808a43 in Zend_hash_apply (ht=0x1955cb0, apply_func=0x7d63a0 )

at/tmp/php-5.6.2/zend/zend_hash.c:641

#7 0x00000000007aaa4e in Php_hash_environment () at/tmp/php-5.6.2/main/php_variables.c:702

#8 0x000000000079bb25 in Php_request_startup () at/tmp/php-5.6.2/main/main.c:1671

#9 0x00000000008a756d in Main (argc= , argv= )

at/tmp/php-5.6.2/sapi/fpm/fpm/fpm_main.c:1887

where Rfc1867_post_handler is Php_session_rfc1867_callback

Finish ~

http://www.bkjia.com/PHPjc/1020285.html www.bkjia.com true http://www.bkjia.com/PHPjc/1020285.html techarticle How to solve data loss problem when PHP post large amount of data this article mainly introduces the solution of data loss problem when PHP post large amount of data, because of the amount of data in the default configuration ...

