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php post大量数据时发现数据丢失问题解决方法

   这篇文章主要介绍了php post大量数据时发现数据丢失问题解决方法,原因是默认配置里的数据量配置太小造成的这个问题,修改一下配置即可,需要的朋友可以参考下

  解决办法:

  在php.ini中将max_input_vars调大改为5000就可以了

  原因追查:

  from的enctype="multipart/form-data"

  php版本5.6.6

  问题:部分POST数据接收不到

  追源代码发现是php中max_input_vars配置造成的;

  相关函数为rfc1867_post_handler,如果超过长度,则不会调用safe_php_register_variable来进行变量注册

  相关堆栈如下

   代码如下:

  #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

  其中rfc1867_post_handler为php_session_rfc1867_callback

  完~

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