View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0001542 | Xdebug | Remote Debugging | public | 2018-03-27 15:44 | 2019-02-04 16:58 |
| Reporter | linus | Assigned To | derick | ||
| Priority | normal | Severity | minor | Reproducibility | always |
| Status | resolved | Resolution | no change required | ||
| Product Version | 2.6.0 | ||||
| Target Version | Fixed in Version | ||||
| Summary | 0001542: variables created in a function body won't show up in PhpStorm | ||||
| Description | When using Xdebug with PhpStorm and PHP 7.2 I cannot see the value of a variable set in a function. In contrast, if the variable is also a parameter to that function I can see it. Sorry if this was mentioned somewhere, I couldn't find anything about this. | ||||
| Steps To Reproduce | create PhpStorm project (empty) and add the following as index.php ''' function hello($name){ $x = 2; return "Hello" . $name; } echo hello("World"); ''' create a run configuration using php's built-in webserver set breakpoint on $x = 2 line open page in browser and step into have a look at the variables info | ||||
| Additional Information | $ php7.2 -v PHP 7.2.3-1+ubuntu17.10.1+deb.sury.org+1 (cli) (built: Mar 6 2018 11:19:27) ( NTS ) Copyright (c) 1997-2018 The PHP Group Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies with Zend OPcache v7.2.3-1+ubuntu17.10.1+deb.sury.org+1, Copyright (c) 1999-2018, by Zend Technologies with Xdebug v2.6.0, Copyright (c) 2002-2018, by Derick Rethans $ php7.1 -v PHP 7.1.15-1+ubuntu17.10.1+deb.sury.org+2 (cli) (built: Mar 6 2018 11:10:54) ( NTS ) Copyright (c) 1997-2018 The PHP Group Zend Engine v3.1.0, Copyright (c) 1998-2018 Zend Technologies with Zend OPcache v7.1.15-1+ubuntu17.10.1+deb.sury.org+2, Copyright (c) 1999-2018, by Zend Technologies with Xdebug v2.6.0, Copyright (c) 2002-2018, by Derick Rethans $ apt show php-xdebug Package: php-xdebug Version: 2.6.0+2.5.5-1+ubuntu17.10.1+deb.sury.org+1 | ||||
| Tags | No tags attached. | ||||
| Operating System | Ubuntu 16.04 | ||||
| PHP Version | 7.2.0-7.2.4 | ||||
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I might add that in addition to Ubuntu, this also doesn't work in Windows 7 (using XAMPP and PHP 7.2.3), but I am told by a colleague that it works just fine in PHP 7.2.0 (also XAMPP, but on Windows 10). |
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This is due to OPcache optimising out the $x = 2 as it has no effect. Compare what PHP generates with OPcache enabled:
compiled vars: none
line #* E I O op fetch ext return operands
-------------------------------------------------------------------------------------
2 0 E > EXT_STMT
1 NOP
7 2 EXT_STMT
3 INIT_FCALL 'hello'
4 EXT_FCALL_BEGIN
5 SEND_VAL 'World'
6 DO_FCALL 0 $0
7 EXT_FCALL_END
8 ECHO $0
8 9 > RETURN 1
with when it is disabled (php -dvld.active=1 -dopcache.enable_cli=0 /tmp/1542.inc):
compiled vars: !0 = $name, !1 = $x
line #* E I O op fetch ext return operands
-------------------------------------------------------------------------------------
2 0 E > EXT_NOP
1 RECV !0
3 2 EXT_STMT
3 ASSIGN !1, 2
4 4 EXT_STMT
5 CONCAT 0000003:0000003 'Hello', !0
6 > RETURN 0000003:0000003
5 7* EXT_STMT
8* > RETURN null
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| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2018-03-27 15:44 | linus | New Issue | |
| 2018-03-28 07:38 | linus | Note Added: 0004622 | |
| 2019-02-04 16:58 | derick | Note Added: 0004874 | |
| 2019-02-04 16:58 | derick | Status | new => resolved |
| 2019-02-04 16:58 | derick | Resolution | open => no change required |
| 2019-02-04 16:58 | derick | Assigned To | => derick |
| 2019-02-04 16:58 | derick | Note Edited: 0004874 | View Revisions |
