| Conditions | 26 | 
| Paths | 11520 | 
| Total Lines | 115 | 
| Code Lines | 69 | 
| Lines | 18 | 
| Ratio | 15.65 % | 
| Changes | 1 | ||
| Bugs | 0 | Features | 0 | 
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
| 1 | <?php  | 
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| 33 | 	public function execute() { | 
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| 34 | $this->useTransactionalTimeLimit();  | 
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| 35 | |||
| 36 | $user = $this->getUser();  | 
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| 37 | $params = $this->extractRequestParams();  | 
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| 38 | |||
| 39 | $this->requireOnlyOneParameter( $params, 'from', 'fromid' );  | 
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| 40 | |||
| 41 | View Code Duplication | 		if ( isset( $params['from'] ) ) { | 
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| 42 | $fromTitle = Title::newFromText( $params['from'] );  | 
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| 43 | 			if ( !$fromTitle || $fromTitle->isExternal() ) { | 
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| 44 | $this->dieUsageMsg( [ 'invalidtitle', $params['from'] ] );  | 
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| 45 | }  | 
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| 46 | 		} elseif ( isset( $params['fromid'] ) ) { | 
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| 47 | $fromTitle = Title::newFromID( $params['fromid'] );  | 
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| 48 | 			if ( !$fromTitle ) { | 
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| 49 | $this->dieUsageMsg( [ 'nosuchpageid', $params['fromid'] ] );  | 
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| 50 | }  | 
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| 51 | }  | 
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| 52 | |||
| 53 | 		if ( !$fromTitle->exists() ) { | 
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                         | 
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| 54 | $this->dieUsageMsg( 'notanarticle' );  | 
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| 55 | }  | 
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| 56 | $fromTalk = $fromTitle->getTalkPage();  | 
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| 57 | |||
| 58 | $toTitle = Title::newFromText( $params['to'] );  | 
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| 59 | 		if ( !$toTitle || $toTitle->isExternal() ) { | 
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| 60 | $this->dieUsageMsg( [ 'invalidtitle', $params['to'] ] );  | 
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| 61 | }  | 
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| 62 | $toTalk = $toTitle->getTalkPage();  | 
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| 63 | |||
| 64 | if ( $toTitle->getNamespace() == NS_FILE  | 
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| 65 | && !RepoGroup::singleton()->getLocalRepo()->findFile( $toTitle )  | 
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| 66 | && wfFindFile( $toTitle )  | 
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| 67 | 		) { | 
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| 68 | 			if ( !$params['ignorewarnings'] && $user->isAllowed( 'reupload-shared' ) ) { | 
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| 69 | $this->dieUsageMsg( 'sharedfile-exists' );  | 
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| 70 | 			} elseif ( !$user->isAllowed( 'reupload-shared' ) ) { | 
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| 71 | $this->dieUsageMsg( 'cantoverwrite-sharedfile' );  | 
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| 72 | }  | 
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| 73 | }  | 
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| 74 | |||
| 75 | // Rate limit  | 
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| 76 | 		if ( $user->pingLimiter( 'move' ) ) { | 
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| 77 | $this->dieUsageMsg( 'actionthrottledtext' );  | 
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| 78 | }  | 
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| 79 | |||
| 80 | // Move the page  | 
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| 81 | $toTitleExists = $toTitle->exists();  | 
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| 82 | $status = $this->movePage( $fromTitle, $toTitle, $params['reason'], !$params['noredirect'] );  | 
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| 83 | 		if ( !$status->isOK() ) { | 
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| 84 | $this->dieStatus( $status );  | 
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| 85 | }  | 
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| 86 | |||
| 87 | $r = [  | 
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| 88 | 'from' => $fromTitle->getPrefixedText(),  | 
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| 89 | 'to' => $toTitle->getPrefixedText(),  | 
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| 90 | 'reason' => $params['reason']  | 
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| 91 | ];  | 
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| 92 | |||
| 93 | // NOTE: we assume that if the old title exists, it's because it was re-created as  | 
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| 94 | // a redirect to the new title. This is not safe, but what we did before was  | 
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| 95 | // even worse: we just determined whether a redirect should have been created,  | 
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| 96 | // and reported that it was created if it should have, without any checks.  | 
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| 97 | // Also note that isRedirect() is unreliable because of bug 37209.  | 
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| 98 | $r['redirectcreated'] = $fromTitle->exists();  | 
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| 99 | |||
| 100 | $r['moveoverredirect'] = $toTitleExists;  | 
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| 101 | |||
| 102 | // Move the talk page  | 
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| 103 | 		if ( $params['movetalk'] && $fromTalk->exists() && !$fromTitle->isTalkPage() ) { | 
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| 104 | $toTalkExists = $toTalk->exists();  | 
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| 105 | $status = $this->movePage( $fromTalk, $toTalk, $params['reason'], !$params['noredirect'] );  | 
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| 106 | 			if ( $status->isOK() ) { | 
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| 107 | $r['talkfrom'] = $fromTalk->getPrefixedText();  | 
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| 108 | $r['talkto'] = $toTalk->getPrefixedText();  | 
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| 109 | $r['talkmoveoverredirect'] = $toTalkExists;  | 
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| 110 | 			} else { | 
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| 111 | // We're not gonna dieUsage() on failure, since we already changed something  | 
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| 112 | $error = $this->getErrorFromStatus( $status );  | 
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| 113 | $r['talkmove-error-code'] = $error[0];  | 
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| 114 | $r['talkmove-error-info'] = $error[1];  | 
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| 115 | }  | 
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| 116 | }  | 
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| 117 | |||
| 118 | $result = $this->getResult();  | 
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| 119 | |||
| 120 | // Move subpages  | 
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| 121 | 		if ( $params['movesubpages'] ) { | 
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| 122 | $r['subpages'] = $this->moveSubpages( $fromTitle, $toTitle,  | 
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| 123 | $params['reason'], $params['noredirect'] );  | 
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| 124 | ApiResult::setIndexedTagName( $r['subpages'], 'subpage' );  | 
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| 125 | |||
| 126 | 			if ( $params['movetalk'] ) { | 
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| 127 | $r['subpages-talk'] = $this->moveSubpages( $fromTalk, $toTalk,  | 
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| 128 | $params['reason'], $params['noredirect'] );  | 
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| 129 | ApiResult::setIndexedTagName( $r['subpages-talk'], 'subpage' );  | 
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| 130 | }  | 
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| 131 | }  | 
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| 132 | |||
| 133 | $watch = 'preferences';  | 
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| 134 | View Code Duplication | 		if ( isset( $params['watchlist'] ) ) { | 
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| 135 | $watch = $params['watchlist'];  | 
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| 136 | 		} elseif ( $params['watch'] ) { | 
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| 137 | $watch = 'watch';  | 
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| 138 | 		} elseif ( $params['unwatch'] ) { | 
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| 139 | $watch = 'unwatch';  | 
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| 140 | }  | 
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| 141 | |||
| 142 | // Watch pages  | 
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| 143 | $this->setWatch( $watch, $fromTitle, 'watchmoves' );  | 
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| 144 | $this->setWatch( $watch, $toTitle, 'watchmoves' );  | 
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| 145 | |||
| 146 | $result->addValue( null, $this->getModuleName(), $r );  | 
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| 147 | }  | 
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| 148 | |||
| 265 | 
If you define a variable conditionally, it can happen that it is not defined for all execution paths.
Let’s take a look at an example:
In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.
Available Fixes
Check for existence of the variable explicitly:
Define a default value for the variable:
Add a value for the missing path: