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Push — master ( 96d38e...7ae454 )
by Wim
9s
created

call_time_pass_by_reference.php ➔ abc()   A

↳ Parent: Project

Complexity

Conditions 1
Paths 1

Size

Total Lines 4
Code Lines 2

Duplication

Lines 0
Ratio 0 %

Importance

Changes 1
Bugs 0 Features 1
Metric Value
cc 1
eloc 2
c 1
b 0
f 1
nc 1
nop 1
dl 0
loc 4
rs 10
1 
<?php
2 

            


            
                                                                                                            
                            
            
                                    
            
            

                
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$a = 1;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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class MoneyBags

            


            
                                                                                                            
                            
            
                                    
            
            

                
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{

            


            
                                                                                                            
                            
            
                                    
            
            

                
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}

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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function abc(&$foobar)

            


            
                                                                        
                            
            
                                    
            
            

                
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{

            


            
                                                                        
                            
            
                                    
            
            

                
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    return $foobar;

            


            
                                                                        
                            
            
                                    
            
            

                
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}

            


            
                                                                                                            
                            
            
                                    
            
            

                
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$right = abc($a);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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$wrong = abc(&$a);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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$a = E_STRICT; // Sniffer checks strings, and returns if no left paren afterwards

            


            
                                                                                                            
                            
            
                                    
            
            

                
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abc($x, $y, $z, &$a);

            


                            

                    
                        
                    
                    
                    
                    
                                                                                                                                                        
                        

                            
                            
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            Unused Code
    
    
    
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The call to abc() has too many arguments starting with $y.
                                                                                                                                                    

                    
                                            

                            

                            

                                
                                    
                                
                            


                            
This check compares calls to functions or methods with their respective definitions.
If the call has more arguments than are defined, it raises an issue.


If a function is defined several times with a different number of parameters, the
check may pick up the wrong definition and report false positives. One codebase
where this has been known to happen is Wordpress.


In this case you can add the @ignore
PhpDoc
annotation to the duplicate definition and it will be ignored.


                        

                                                    

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The call to the function abc() seems unnecessary as the function has no side-effects.
                                                                                                

                    
                                                    

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// nested function call

            


            
                                                                                                            
                            
            
                                    
            
            

                
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preg_replace($a, $b, trim(&$a));

            


            
                                                                                                            
                            
            
                                    
            
            

                
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foobar(3 & $a); // LNUMBER + &

            


            
                                                                                                            
                            
            
                                    
            
            

                
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foobar($a & $b); // variable + &

            


            
                                                                                                            
                            
            
                                    
            
            

                
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foobar($b[0] & $a); // square bracket + &

            


            
                                                                                                            
                            
            
                                    
            
            

                
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foobar(($a) & $b); // parenthesis + &

            


            
                                                                                                            
                            
            
                                    
            
            

                
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foobar(intval(3) & $b); // function + &

            


            
                                                                                                            
                            
            
                                    
            
            

                
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foobar(& $b);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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define('MY_CONST', 0);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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class MoreRefs

            


            
                                                                                                            
                            
            
                                    
            
            

                
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{

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    const MYCONST = 1;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    private $attribute = 2;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    public function bar($arg)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        $a = sprintf(

            


                            

                    
                        
                    
                    
                    
                    
                                                                                                    
                        

                            
                            
0 ignored issues

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            Unused Code
    
    
    
        introduced 
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$a is not used, you could remove the assignment.
                                                                                                

                    
                                            

                            

                            

                                
                                    
                                
                            


                            
This check looks for variable assignements that are either overwritten by other
assignments or where the variable is not used subsequently.


$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}





Both the $myVar assignment in line 1 and the $higher assignment in line 2
are dead. The first because $myVar is never used and the second because
$higher is always overwritten for every possible time line.


                        

                                                    

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            '%s %s %s'

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            , self::MYCONST & $arg ? 1 : 2

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            , $this->attribute & $arg ? 5 : 6

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            , MY_CONST & $arg ? 7 : 8

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        );

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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    }

            


            
                                                        
            
                                    
            
            

                
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}