PHP 输出错误时的堆栈情况:
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						#0  php_error_cb (type=1, error_filename=0x7ffff7fdbaf0 "/data3/eatmem.php", error_lineno=3,     format=<value optimized out>, args=<value optimized out>)     at /data3/rpmbuild/SOURCES/beebank-php5-5.5.25.1/main/main.c:1132 #1  0x00000000006ae29c in zend_error (type=1,     format=0xb09580 "Allowed memory size of %ld bytes exhausted (tried to allocate %lu bytes)")     at /data3/rpmbuild/SOURCES/beebank-php5-5.5.25.1/Zend/zend.c:1128 #2  0x0000000000687848 in zend_mm_safe_error (heap=0xe2f050,     format=0xb09580 "Allowed memory size of %ld bytes exhausted (tried to allocate %lu bytes)", limit=1048576,     size=2048001) at /data3/rpmbuild/SOURCES/beebank-php5-5.5.25.1/Zend/zend_alloc.c:1777 #3  0x00000000006884e6 in _zend_mm_alloc_int (heap=0xe2f050, size=2048001)     at /data3/rpmbuild/SOURCES/beebank-php5-5.5.25.1/Zend/zend_alloc.c:1980 #4  0x000000000061195b in zif_str_repeat (ht=<value optimized out>, return_value=0x7ffff7fdb058,     return_value_ptr=<value optimized out>, this_ptr=<value optimized out>,     return_value_used=<value optimized out>)     at /data3/rpmbuild/SOURCES/beebank-php5-5.5.25.1/ext/standard/string.c:4917 #5  0x000000000073070b in zend_do_fcall_common_helper_SPEC (execute_data=<value optimized out>)     at /data3/rpmbuild/SOURCES/beebank-php5-5.5.25.1/Zend/zend_vm_execute.h:550 #6  0x0000000000721f50 in execute_ex (execute_data=0x7ffff7fa8210)     at /data3/rpmbuild/SOURCES/beebank-php5-5.5.25.1/Zend/zend_vm_execute.h:363 #7  0x00000000006ad719 in zend_execute_scripts (type=8, retval=0x0, file_count=3)     at /data3/rpmbuild/SOURCES/beebank-php5-5.5.25.1/Zend/zend.c:1327 #8  0x000000000064ef7a in php_execute_script (primary_file=0x7fffffffe070)     at /data3/rpmbuild/SOURCES/beebank-php5-5.5.25.1/main/main.c:2525 #9  0x000000000075fdbc in do_cli (argc=6, argv=0xe2ec30)     at /data3/rpmbuild/SOURCES/beebank-php5-5.5.25.1/sapi/cli/php_cli.c:994 #10 0x0000000000760558 in main (argc=6, argv=0xe2ec30)     at /data3/rpmbuild/SOURCES/beebank-php5-5.5.25.1/sapi/cli/php_cli.c:1378  | 
					
如果需要添加更多的信息,只需要在php_error_cb 函数里面添加就行了