php post大量数据时发现数据丢失问题解决方法

#0  rfc1867_post_handler (
    content_type_dup=0x7ff85307a5f8 "multipart/form-data; boundary=", '-' <repeats 27 times>, "306141311912057",
    arg=0x7ff85307ccc0) at /tmp/php-5.6.2/main/rfc1867.c:681
#1  0x00000000007a4bb0 in sapi_handle_post (arg=<value optimized out>) 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 <zend_auto_global_init>)
    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=<value optimized out>, argv=<value optimized out>)
    at /tmp/php-5.6.2/sapi/fpm/fpm/fpm_main.c:1887