PHP
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发表于 5年以前
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¼ÙÉeÎÒÃÇÒѾÏÂÔØphpµÄÔ´Âe°u£¬²¢*ÅÔÚÁË/home/phpĿ¼Ï¡£
#cd /home/php/sapi
#git clone https://github.com/krakjoe/phpdbg
#cd ../
#./buildconf --force
#./config.nice
#make -j8
#make install-phpdbg
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1¡¢Èç¹uÄaµÄphp°ae±¾ÊÇphp5.6»oÕ߸u¸ßµÄ°ae±¾£¬phpdbgÒѾ¼¯³ÉÔÚphpµÄ´uÂe°uÖУ¬ÎÞÐeµ¥¶ÀÏÂÔØÁË¡£
2¡¢±aÒe²ÎÊýÖмǵÃÒª¼Ó ¨Cenable-phpdbg¡£
3¡¢±aÒeʱ²ÎÊý£¬¨Cwith-readline ¿ÉÒÔÑ¡ÔñÐÔÌi¼Ó¡£Èç¹u²»Ìi¼Ó£¬phpdbgµÄhistoryµÈ¹¦ÄÜÎÞ*¨Ê¹Óá£
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phpdbgÊÇphpµÄÒ»¸osapi£¬Ëu¿ÉÒÔÒÔÃuÁiÐеÄ*½Ê½µ÷ÊÔphp¡£³£ÓòÎÊýÈçÏ£º
The following switches are implemented (just like cli SAPI):
-n ignore php ini
-c search for php ini in path
-z load zend extension
-d define php ini entry
The following switches change the default behaviour of phpdbg:
-v disables quietness
-s enabled stepping
-e sets execution context
-b boring ¨C disables use of colour on the console
-I ignore .phpdbginit (default init file)
-i override .phpgdbinit location (implies -I)
-O set oplog output file
-q do not print banner on startup
-r jump straight to run
-E enable step through eval()
Note: passing -rr will cause phpdbg to quit after execution, rather than returning to the console
2¡¢³£Óù¦ÄÜ
֮ǰÎÒÃǽeÉܹýgdb¹¤¾ß¡£ÆaʵphpdbgºÍgdb¹¦ÄÜÓÐÐ(C)µØ½Ç³£ÏaËÆ¡£È磬¿ÉÒÔÉeÖöϵa£¬¿ÉÒÔµ¥²½Ö´ÐУ¬µÈ¡£Ö»ÊÇËuÃǵ÷ÊÔµÄÓiÑÔ²»Ò»Ñu£¬gdb²aÖØÓÚµ÷ÊÔc»oÕßc++ÓiÑÔ£¬¶øphpdbg²aÖØÓÚµ÷ÊÔphpÓiÑÔ¡£ÏÂÃaeÎÒÃǽ«¶ÔphpdbgµÄÒ»Ð(C)³£Óõ÷ÊÔ¹¦ÄÜ×oϽeÉÜ¡£Òªµ÷ÊԵĴuÂeÈçÏ£º
Îļþtest_phpdbg_inc.phpÔ´´uÂeÈçÏ£º
<?php
function phpdbg_inc_func()
{
echo "phpdbg_inc_func \n";
}
?>
Îļþtest_phpdgb.phpµÄÔ´´uÂeÈçÏ£º
<?php
include(dirname(__FILE__)."/test_phpdbg_inc.php");
class demo{
public function __construct(){
echo __METHOD__.":".__LINE__."\n";
}
public function func($param){
$param++;
echo "method func $param\n";
}
public function __destruct(){
echo __METHOD__.":".__LINE__."\n";
}
}
function func(){
$param = "ali";
$param = $param + "baba";
echo "function func $param\n";
}
$demo = new demo();
$demo->func(1);
func();
phpdbg_inc_func();
?>
3¡¢Æo¶¯phpdbg
phpdbg°²×°³É¹¦ºo£¬»aÔÚ°²×°Ä¿Â¼µÄbinĿ¼Ï¡£½øÈebinĿ¼£¬Ö±½ÓÊaÈephpdbg¼´¿É¡£ÈçÏ£º
#phpdeg
[Welcome to phpdbg, the interactive PHP debugger, v0.4.0]
To get help using phpdbg type "help" and press enter
[Please report bugs to <http://github.com/krakjoe/phpdbg/issues>]
prompt>
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#phpdbg
......
prompt> exec ./test_phpdbg.php
µ±È»ÎÒÃÇÒ²¿ÉÒÔÔÚÆo¶¯phpdbgµÄʱºo£¬Ö¸¶¨e²ÎÊý¡£ÈçÏ£º
#phpdbg -e ./test_phpdbg.php
4¡¢²e¿´°iÖuÐÅÏ¢
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prompt> help
phpdbg is a lightweight, powerful and easy to use debugging platform for PHP5.4+
It supports the following commands:
Information
list list PHP source
......
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ÕaÀiËu˵µÄopline£¬¾ÍÊÇÒÔ½¨Èe¿Ú×÷ΪÆðµa£¬µ±Ç°´uÂeµÄÐкš£Èçtest_phpdgb.phpÎļþÖУ¬µÚ18ÐеĴuÂe¡°$param = $param + ¡°baba¡±;¡±µÄopline¾ÍÊÇ 2¡£
......
prompt> b func#2
prompt> r
demo::__construct:5
method func 2
[Breakpoint #0 resolved at func#2 (opline 0x7f5b230a2e38)]
[Breakpoint #0 resolved at func#2 (opline 0x7f5b230a2e38)]
[Breakpoint #0 resolved at func#2 (opline 0x7f5b230a2e38)]
[Breakpoint #0 in func()#2 at ./test_phpdbg.php:18, hits: 1]
>00018: $param = $param + "baba";
00019: echo "function func $param\n";;
00020: }
......
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ºÍgdbÒ»Ñu£¬phpdbgÒ²ÊÇʹÓÃinfo breakÃuÁi²e¿´¶Ïµa¡£Ê¾ÀýÈçÏ£º
....
prompt> info break
------------------------------------------------
File Breakpoints:
#1 /home/hailong.xhl/test_phpdbg.php:10
------------------------------------------------
Opline Breakpoints:
#0 7ff3219e1df0 (function breakpoint)
------------------------------------------------
Function opline Breakpoints:
#0 func opline 2
....
ͨ¹ýÉÏÃaeµÄÏÔʾ£¬ÎÒÃÇ¿ÉÒÔÖªµÀ¡£info breakµÄÏÔʾ½a¹uÖлa°Ñ¶ÏµaµÄÀaÐÍÒ²¸øÏÔʾ³oÀ´¡£#ºoÃaeµÄÊý×ÖÊǶϵaºÅ¡£ÎÒÃÇ¿ÉÒÔ¸u¾Ý¶ÏµaºÅɾ³ý¶Ïµa¡£
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ºÍgdbÃuÁi²»Ò»Ñu¡£phpdbgµÄɾ³ý¶Ïµa²»ÊÇdeleteÃuÁi£¬¶øÊÇbreak del ÃuÁi¡£Ê¾ÀýÈçÏ£º
......
prompt> break del 1
[Deleted breakpoint #1]
prompt>
......
break del ºoÃaeµÄÊý×Ö1¾ÍÊǶϵaºÅ¡£
8¡¢²e¿´´uÂe
phpdbg²e¿´´uÂeµÄÃuÁiÒ²ÊÇlist¡£µ«ÊǺÍgdbÏa±È£¬Ê¹ÓõÄ*½Ê½¸u¶aÑuÒ»Ð(C)¡£
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prompt> l f func
00017: $param = "ali";
00018: $param = $param + "baba";
00019: echo "function func $param\n";;
00020: }
00021:
prompt>
......
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phpdbgµÄµ¥²½Ö´ÐÐÖ»ÓÐÒ»¸oÃuÁi step¡£ºÍgdbµÄstepÃuÁi²i²»¶a¡£¶¼ÊÇÒ»ÐÐÒ»ÐеÄÖ´ÐдuÂe¡£×¢Òa£¬phpdbgÊÇûÓÐnextÃuÁiµÄ¡£
....
prompt> s
[Breakpoint #0 resolved at func#2 (opline 0x152ba40)]
[L19 0x152ba70 ZEND_ADD_STRING C2 @0 ./test_phpdbg.php]
>00019: echo "function func $param\n";;
00020: }
00021:
....
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......
prompt> ev $var = "val";
val
prompt> ev var_dump($var);
string(3) "val"
......
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