PHP Static analysis for

Label	Recipes	Issues	Files	Severity	Frequence
Null Or Boolean Arrays	All, Analyze	2	2	Minor	0 %
String Initialization	All, CompatibilityPHP71	2	2	Minor	33 %
Too Many Array Dimensions	All, Analyze	19	4	Minor	0 %
Avoid Optional Properties	All, Analyze	2	2	Major	83 %
Const Visibility Usage	All, CompatibilityPHP53, CompatibilityPHP70, CompatibilityPHP54, CompatibilityPHP55, CompatibilityPHP56	1	1	Minor	16 %
Could Be Abstract Class	All, Analyze, ClassReview	7	7	Minor	65 %
Class Could Be Final	All, Analyze, ClassReview	152	152	Minor	95 %
Method Could Be Static	All, Analyze, ClassReview	43	29	Minor	95 %
Don't Unset Properties	All, Analyze, Top10, php-cs-fixable	4	3	Major	40 %
Empty Classes	Analyze, All, Simple	32	32	Minor	58 %
Hidden Nullable	All, Analyze, ClassReview	5	2	Minor	0 %
Locally Unused Property	Dead code, All, Simple	21	21	Minor	76 %
Make Global A Property	Analyze, All, Simple	6	6	Minor	33 %
No Public Access	Analyze, All	1	1	Minor	60 %
Non Nullable Getters	All, Analyze, ClassReview	1	1	Minor	0 %
Non Static Methods Called In A Static	Analyze, CompatibilityPHP56, All, Simple, CompatibilityPHP53, CompatibilityPHP54, CompatibilityPHP55	2	1	Minor	20 %
Never Used Properties	Analyze, All, Simple	21	21	Minor	72 %
Property Used In One Method Only	All, Analyze	2	2	Minor	84 %
Should Use Local Class	Analyze, ClearPHP, All, Simple	29	21	Minor	94 %
Too Many Dereferencing	All, Analyze	6	5	Minor	0 %
Wrong Access Style to Property	All, Analyze, Level 2, ClassReview	11	4	Critical	3 %
Undefined Classes	Analyze, All	408	74	Major	91 %
Undefined Class Constants	Analyze, All	2	1	Major	53 %
Undefined Parent	Analyze, All, Simple	58	29	Minor	63 %
Undefined Properties	Analyze, ClearPHP, All, Simple	17	7	Major	58 %
Undefined ::class	All, Analyze	3	1	Major	34 %
Unresolved Catch	Dead code, ClearPHP, All	23	10	Major	51 %
Unresolved Classes	Analyze, All	108	41	Major	86 %
Unresolved Instanceof	Analyze, Dead code, ClearPHP, All, Simple, Top10	2	2	Major	48 %
Unused Classes	Dead code, All, Simple, Analyze	51	51	Major	72 %
Unused Methods	Dead code, All, Simple	221	106	Minor	95 %
Unused Protected Methods	Dead code, All	32	20	Major	72 %
Use Instanceof	Analyze, All, Simple	1	1	Major	63 %
Used Once Property	All, Analyze	3	3	Minor	72 %
Undefined Caught Exceptions	Dead code, All	14	8	None	50 %
Uncaught Exceptions	Analyze, All	93	35	Minor	81 %
Aliases Usage	Analyze, ClearPHP, OneFile, All, Simple, Level 1	1	1	Minor	42 %
Use Named Boolean In Argument Definition	All, Analyze	11	9	Minor	84 %
Could Make A Function	All, Analyze, Suggestions	42	26	Minor	75 %
Empty Function	Analyze, All, Simple	8	6	Minor	71 %
Hardcoded Passwords	Analyze, OneFile, Security, All, Simple, Level 3	16	3	Major	61 %
Insufficient Typehint	All, Analyze, Typechecks	5	3	Major	24 %
Mismatched Default Arguments	All, Analyze, Typechecks	3	3	Minor	33 %
Mismatched Typehint	All, Analyze, Typechecks	11	6	Major	5 %
Never Used Parameter	All, Analyze, Suggestions	41	30	Minor	47 %
No Boolean As Default	All, Analyze	11	9	Minor	84 %
Relay Function	Analyze, All	13	11	Major	83 %
Too Many Local Variables	All, Analyze	4	4	Minor	65 %
Unused Arguments	Analyze, All, Simple	16	12	Major	89 %
Uses Default Values	Analyze, All, Simple	166	55	Minor	97 %
Methods Without Return	All, Analyze	161	65	Minor	0 %
Wrong Returned Type	All, Analyze, ClassReview	56	36	Minor	0 %
Undefined Interfaces	Analyze, All	187	58	Major	67 %
Multiple Alias Definitions	Analyze, All, Simple	95	70	Minor	42 %
Should Make Alias	Analyze, OneFile, All, Simple	33	8	Minor	44 %
Unresolved Use	Analyze, ClearPHP, All, Simple	255	111	Major	65 %
Unused Use	Dead code, ClearPHP, All, Simple	26	20	Major	54 %
No array_merge() In Loops	Analyze, Performances, ClearPHP, All, Simple, Level 2, Top10	1	1	Major	55 %
Pre-increment	Analyze, Performances, All, Simple, Level 4	7	5	Minor	74 %
Use === null	Analyze, OneFile, All, RadwellCodes, Simple, php-cs-fixable	7	5	Minor	52 %
PHP 7.0 Scalar Typehints	All, CompatibilityPHP53, CompatibilityPHP54, CompatibilityPHP55, CompatibilityPHP56	144	62	Critical	31 %
PHP Keywords As Names	Analyze, All, Simple	16	2	Major	89 %
Should Use Coalesce	Analyze, All, Simple, Suggestions, Level 3	1	1	Major	71 %
Too Many Native Calls	All, Analyze	4	1	Minor	47 %
Use Nullable Type	All, Appinfo, CompatibilityPHP53, CompatibilityPHP70, CompatibilityPHP54, CompatibilityPHP55, CompatibilityPHP56	22	12	Major	21 %
Avoid Using stdClass	All, Analyze, OneFile, Simple, Level 4	17	8	Minor	45 %
Avoid Those Hash Functions	Security, All	2	1	Major	60 %
Should Use session_regenerateid()	All, Security	1	1	Major	82 %
Bail Out Early	All, Analyze, OneFile, Simple, Level 4	1	1	Minor	92 %
Strict Comparison With Booleans	Analyze, All, Simple, Suggestions, Level 2	30	18	Minor	76 %
Buried Assignation	Analyze, All	38	28	Minor	82 %
Check All Types	All, Analyze	1	1	Major	68 %
Check JSON	All, Analyze	6	4	Major	64 %
Common Alternatives	Analyze, All, Simple	2	2	Major	61 %
Could Be Else	All, Analyze	1	1	Minor	48 %
Could Use Short Assignation	Analyze, OneFile, Performances, All, Simple	5	4	Minor	60 %
Could Use str_repeat()	All, Analyze, Level 1, Top10	1	1	Minor	12 %
Dont Change The Blind Var	All, Analyze	10	9	Minor	72 %
Dont Mix ++	All, Analyze	1	1	Minor	43 %
Double Instructions	Analyze, All, Simple	5	4	Minor	57 %
Echo With Concat	Performances, Analyze, All, Simple, Suggestions	35	2	Minor	58 %
Else If Versus Elseif	Analyze, All, Simple, php-cs-fixable, Rector	1	1	Minor	65 %
Empty Try Catch	Analyze, All, Level 3	6	3	Minor	47 %
Global Usage	Analyze, Appinfo, ClearPHP, All	6	6	Minor	52 %
Identical Consecutive Expression	All, Analyze	2	1	Minor	58 %
Implode() Arguments Order	All, Analyze	1	1	Minor	0 %
Inconsistent Elseif	All, Analyze	2	2	Major	73 %
Infinite Recursion	All, Analyze	2	2	Major	0 %
Long Arguments	All, Analyze	49	15	Minor	67 %
Max Level Of Nesting	All, Analyze	22	15	Minor	0 %
Merge If Then	All, Analyze	9	7	Minor	0 %
Missing New ?	All, Analyze	10	7	Critical	5 %
Mixed Concat And Interpolation	All, Coding Conventions, Analyze	6	3	Minor	43 %
Modernize Empty With Expression	All, Analyze, OneFile, Simple	23	17	Minor	56 %
Multiple Type Variable	All, Analyze, Level 4	3	3	Minor	43 %
Nested Ifthen	Analyze, All, RadwellCodes	36	18	Major	87 %
No isset() With empty()	All, PHP recommendations, Analyze, OneFile, RadwellCodes, Simple, Level 4	2	2	Minor	28 %
No Need For Else	All, Analyze	6	2	Minor	74 %
Variable Is Not A Condition	All, Analyze	10	7	Minor	57 %
Printf Number Of Arguments	All, Analyze	1	1	Minor	42 %
Repeated print()	Analyze, All, Simple, Suggestions, Level 3, Top10	19	2	Major	49 %
Should Make Ternary	All, Analyze, OneFile, Simple	3	2	Minor	85 %
Preprocessable	Analyze, All, Rector	139	48	Minor	86 %
Switch To Switch	Analyze, All, RadwellCodes, Simple	1	1	Minor	79 %
Switch Without Default	Analyze, ClearPHP, All, Simple	3	3	Major	68 %
Avoid get_class()	Analyze, All, Simple	1	1	Minor	32 %
Use Positive Condition	All, Analyze, OneFile, Simple	7	5	Minor	81 %
Useless Check	All, Analyze, OneFile, Simple, Level 1	23	12	Minor	48 %
Useless Parenthesis	Analyze, All, Simple	3	3	Minor	81 %
Useless Unset	Analyze, OneFile, ClearPHP, All, Simple, Level 2	3	1	Major	28 %
Assigned Twice	All, Analyze	45	10	Minor	78 %
Overwritten Literals	Analyze, All	45	10	Major	78 %
Strange Name For Variables	All, Analyze	4	1	Minor	28 %
Undefined Variable	All, Analyze	7	2	Minor	77 %
Used Once Variables (In Scope)	Analyze, ClearPHP, OneFile, All, Simple, Level 4	22	15	Minor	95 %
Written Only Variables	Analyze, OneFile, All, Simple	16	7	Minor	78 %