No Issues Analysis

Here is the list of analysis that didn't yield any results. The more there are here, the better you're coding.

Analysis
  Ambiguous Array Index
  Append And Assign Arrays
  Short Syntax For Arrays
  Float Conversion As Index
  Getting Last Element
  Multiple Index Definition
  Negative Start Index In Array
  No Spread For Hash
  Non-constant Index In Array
  Null Or Boolean Arrays
  Randomly Sorted Arrays
  Slice Arrays First
  Too Many Array Dimensions
  Weak Type With Array
  Missing Attribute Attribute
  Modify Immutable
  Nested Attributes
  Abstract Or Implements
  Abstract Static Methods
  Accessing Private
  Access Protected Structures
  Ambiguous Static
  Ambiguous Visibilities
  Anonymous Classes
  Avoid option arrays in constructors
  Avoid Optional Properties
  Can't Extend Final
  Can't Instantiate Class
  Cant Instantiate Non Class
  Can't Overwrite Final Constant
  Check After Null Safe Operator
  Check On __Call Usage
  Checks Property Existence
  Class, Interface, Enum Or Trait With Identical Names
  Clone With Non-Object
  Const Visibility Usage
  Could Be Abstract Class
  Class Could Be Final
  Method Could Be Static
  Could Inject Parameter
  Cyclic References
  Dependant Abstract Classes
  Different Argument Counts
  No Direct Call To Magic Method
  Don't Send $this In Constructor
  Don't Unset Properties
  Empty Classes
  Extends stdClass
  Final Private Methods
  Hidden Nullable Typehint
  Implements Is For Interface
  Implemented Methods Must Be Public
  Incompatible Signature Methods
  Incompatible Signature Methods With Covariance
  Inherited Property Type Must Match
  Instantiating Abstract Class
  Assign Default To Properties
  Make Global A Property
  Make Magic Concrete
  Method Signature Must Be Compatible
  Mismatch Properties Typehints
  Missing Abstract Method
  Multiple Class Declarations
  Multiple Identical Trait Or Interface
  New Dynamic Class Constant Syntax
  New Object Then Immediate Call
  No Magic Method With Array
  No Null With Null Safe Operator
  self, parent, static Outside Class
  Class Without Parent
  No Public Access
  No Readonly Assignation In Global
  No Self Referencing Constant
  Non Nullable Getters
  Forgotten Visibility
  Non Static Methods Called In A Static
  Old Style Constructor
  Var Keyword
  Parent First
  Parent Is Not Static
  Property Could Be Local
  Same Name For Property And Method
  Never Used Properties
  Property Used In One Method Only
  Parent, Static Or Self Outside Class
  Scalar Or Object Property
  Could Use self
  Should Use Local Class
  Static Methods Cannot Call Non-Static Methods
  Static Methods Can't Contain $this
  Static Methods Called From Object
  Swapped Arguments
  $this Belongs To Classes Or Traits
  $this Is Not An Array
  $this Is Not For Static Methods
  Throw In Destruct
  Too Many Dereferencing
  Too Many Finds
  Too Many Injections
  Typed Class Constants Usage
  Wrong Access Style to Property
  Undefined Classes
  Undefined Class Constants
  Undefined Parent
  Undefined Properties
  Undefined static:: Or self::
  Undefined ::class
  Unfinished Object
  Unreachable Method
  Unresolved Classes
  Unresolved Instanceof
  Unused Classes
  Unused Class Constant
  Unused Public Methods
  Use ::Class Operator
  Use Instanceof
  Used Once Property
  Useless Abstract Class
  Useless Assignation Of Promoted Property
  Useless Constructor
  Useless Final
  Useless Method
  Using $this Outside A Class
  Weak Typing
  Illegal Name For Method
  Wrong Typed Property Default
  Bad Constants Names
  Case Insensitive Constants
  Use const
  Constants Created Outside Its Namespace
  Invalid Constant Name
  Multiple Constant Definition
  Strange Name For Constants
  Undefined Constants
  No Magic Method For Enum
  Undefined Enumcase
  Unused Enumeration Case
  Can't Throw Throwable
  Catch With Undefined Variable
  Converted Exceptions
  Forgotten Thrown
  Multiple Exceptions Catch()
  Overwritten Exceptions
  Throw Functioncall
  Throw Raw Exceptions
  Uncaught Exceptions
  Unthrown Exception
  Useless Catch
  Useless Try
  ext/apc
  ext/dba
  ext/mcrypt
  ext/mysql
  Inclusion Wrong Case
  Missing Include
  Native Alias Functions Usage
  Use Named Boolean In Argument Definition
  Callback Function Needs Return
  Can't Call Generator
  Cancelled Parameter
  Cannot Use Static For Closure
  Closure Could Be A Callback
  Could Make A Function
  Deep Definitions
  Deprecated Callable
  Don't Collect Void
  Duplicate Named Parameter
  Empty Function
  Fn Argument Variable Confusion
  Hardcoded Passwords
  Insufficient Typehint
  Method Is Not An If
  Mismatch Parameter Name
  Mismatch Type And Default
  Mismatched Default Arguments
  Mismatched Typehint
  Modified Typed Parameter
  Must Return Methods
  Never Called Parameter
  No Boolean As Default
  No Default For Referenced Parameter
  No Literal For Reference
  No Referenced Void
  No Return Used
  Nullable With Constant
  Only Variable For Reference
  Only Variable Passed By Reference
  Redeclared PHP Functions
  Relay Function
  Retyped Reference
  Should Use Existing Constants
  Should Yield With Key
  Too Many Local Variables
  Type Must Be Returned
  Class-typed References
  Unbinding Closures
  Undefined Functions
  Unknown Parameter Name
  Unused Parameter
  Unused Inherited Variable In Closure
  Unused Returned Value
  Use Constant As Arguments
  Use Constants As Returns
  Useless Argument
  Useless Referenced Argument
  Useless Return
  Uses Default Values
  Using Deprecated Method
  Void Is Not A Reference
  Methods Without Return
  Wrong Argument Name With PHP Function
  Wrong Argument Type
  Wrong Number Of Arguments
  Wrong Optional Parameter
  Wrong Type Returned
  Wrong Type With Call
  func_get_arg() Modified
  Already Parents Interface
  Can't Implement Traversable
  Cant Overload Constants
  Forgotten Interface
  Empty Interfaces
  Inherited Class Constant Visibility
  Interfaces Is Not Implemented
  Interfaces Don't Ensure Properties
  Repeated Interface
  Undefined Interfaces
  Useless Interfaces
  Fully Qualified Constants
  Empty Namespace
  Hidden Use Expression
  Multiple Alias Definitions Per File
  Multiple Alias Definitions
  No Keyword In Namespace
  Overload Existing Names
  Should Make Alias
  Unresolved Use
  Use With Fully Qualified Name
  array_key_exists() Speedup
  No array_merge() In Loops
  Autoappend
  Avoid array_push()
  Cache Variable Outside Loop
  Scope Resolution Operator
  Count() To Array Append
  fputcsv() In Loops
  Do In Base
  Double array_flip()
  Ellipsis Merge
  Fetch One Row Format
  Isset() On The Whole Array
  Joining file()
  Logical To in_array
  Make One Call With Array
  No mb_substr In Loop
  Memoize MagicCall
  Avoid Concat In Loop
  Avoid glob() Usage
  No Count With 0
  Optimize Explode()
  Use PHP7 Encapsed Strings
  Always Use Function With array_key_exists()
  Pre-Calculate Use
  Pre-increment
  Regex On Arrays
  Processing Collector
  Should Cache Local
  Simple Switch And Match
  Simplify Foreach
  Skip Empty Array
  Slow Functions
  Static Call May Be Truly Static
  strpos() Too Much
  Substring First
  Substr() In Loops
  Too Many Extractions
  Use array_slice()
  Use The Blind Var
  time() Vs strtotime()
  array_key_exists() Works On Arrays
  Assert Function Is Reserved
  Assign And Lettered Logical Operator Precedence
  Assumptions
  Avoid get_object_vars()
  Avoid mb_dectect_encoding()
  Use random_int()
  Calling Static Trait Method
  Cast Unset Usage
  class_alias() Supports Internal Classes
  Clone Constant
  Nonexistent Variable In compact()
  Concat And Addition
  Constant Scalar Expression
  Crc32() Might Be Negative
  DateTimeImmutable Is Not Immutable
  Dollar Curly Interpolation Is Deprecated
  Deprecated PHP Functions
  Detect Current Class
  Don't Pollute Global Space
  Ellipsis Usage
  Empty List
  Enum Usage
  Exit Without Argument
  False To Array Conversion
  $FILES full_path
  Filter To add_slashes()
  Final Constant
  Wrong fopen() Mode
  Foreach On Object
  Group Use Declaration
  Hash Algorithms
  Hash Algorithms Incompatible With PHP 7.4-
  idn_to_ascii() New Default
  Incompilable Files
  Numeric Literal Separator
  Wrong Parameter Type
  Is_A() With String
  Use === null
  PHP Native Interfaces and Return Type
  List Short Syntax
  List With Keys
  Logical Should Use Symbolic Operators
  Missing __isset() Method
  Possible Missing Subpattern
  Mixed Keyword
  Multiple Declaration Of Strict_types
  Must Call Parent Constructor
  Named Argument And Variadic
  Named Parameter Usage
  PHP Native Class Type Compatibility
  Nested Ternary Without Parenthesis
  Never Keyword
  Never Typehint Usage
  New Initializers
  Do Not Cast To Int
  No Class In Global
  No More Curly Arrays
  No Null For Native PHP Functions
  No Reference For Ternary
  Only Variable Passed By Reference
  Openssl Encrypt Default Algorithm Change
  PHP 8.0 Typehints
  PHP 8.1 Typehints
  Pathinfo() Returns May Vary
  PHP 7.4 Constant Deprecation
  Php 7.4 New Classes
  New Constants In PHP 7.4
  New Functions In PHP 7.4
  PHP 7.4 Removed Directives
  PHP 7.4 Removed Functions
  PHP 7.4 Reserved Keyword
  mb_strrpos() Third Argument
  Php7 Relaxed Keyword
  PHP 80 Named Parameter Variadic
  New Functions In PHP 8.0
  Php 8.0 Only TypeHints
  PHP 8.0 Removed Constants
  PHP 8.0 Removed Directives
  PHP 8.0 Removed Functions
  PHP 8.0 Resources Turned Into Objects
  Union Typehint
  Php 8.0 Variable Syntax Tweaks
  New Functions In PHP 8.1
  PHP 8.1 New Types
  PHP 8.1 Removed Constants
  PHP 8.1 Removed Directives
  PHP 8.1 Removed Functions
  PHP 8.1 Resources Turned Into Objects
  New Functions In PHP 8.2
  PHP 8.2 New Types
  $php_errormsg Usage
  $HTTP_RAW_POST_DATA Usage
  Readonly Property Changed By Cloning
  Reflection Export() Is Deprecated
  Reserved Match Keyword
  Restrict Global Usage
  Scalar Are Not Arrays
  Short Open Tags
  Should Use array_column()
  Should Use Coalesce
  Should Use Function
  Signature Trailing Comma
  Static Variable Can Default To Arbitrary Expression
  String Int Comparison
  strpos() With Integers
  Strtr Arguments
  Throw Was An Expression
  Too Many Native Calls
  Trailing Comma In Calls
  Typed Property Usage
  Unknown Pcre2 Option
  Use Enum Case In Constant Expression
  Uses PHP 8 Match()
  Use Nullable Type
  Use PHP Object API
  Use Pathinfo
  Use pathinfo() Arguments
  Should Use SetCookie()
  Avoid Using stdClass
  Utf8 Encode And Decode Are Deprecated
  version_compare Operator
  Wrong Attribute Configuration
  Wrong Type For Native PHP Function
  Old Style __autoload()
  Always Anchor Regex
  Avoid Those Hash Functions
  Compare Hash
  Configure Extract
  Check Crypto Key Length
  Safe Curl Options
  Direct Injection
  Don't Echo Error
  Dynamic Library Loading
  Encoded Simple Letters
  filter_input() As A Source
  Filter Not Raw
  Incompatible Types With Incoming Values
  Indirect Injection
  Insecure Integer Validation
  Keep Files Access Restricted
  Minus One On Error
  Mkdir Default
  move_uploaded_file Instead Of copy
  No ENT_IGNORE
  No Net For Xml Load
  Avoid sleep()/usleep()
  No Weak SSL Crypto
  Register Globals
  Safe HTTP Headers
  Unvalidated Data Cached In Session
  Session Lazy Write
  Set Cookie Safe Arguments
  Should Use Prepared Statement
  Should Use session_regenerateid()
  Sqlite3 Requires Single Quotes
  Unserialize Second Arg
  Upload Filename Injection
  parse_str() Warning
  Adding Zero
  Altering Foreach Without Reference
  Alternative Syntax Consistence
  Comparison Is Always The Same
  Array Access On Literal Array
  Array_Fill() With Objects
  Array_Map() Passes By Value
  array_merge() And Variadic
  Array_merge Needs Array Of Arrays
  Assign And Compare
  Same Variable Foreach
  Bail Out Early
  Strict Comparison With Booleans
  Break Outside Loop
  Buried Assignation
  Cannot Use Append For Reading
  Cast To Boolean
  Casting Ternary
  Catch Overwrite Variable
  Check All Types
  Check Division By Zero
  Check JSON
  Coalesce And Concat
  Coalesce And Ternary Operators Order
  Common Alternatives
  Compared Comparison
  Concat Empty String
  Constant Scalar Expressions
  Continue Is For Loop
  Could Be Else
  Could Be Spaceship
  Could Be A Static Variable
  Could Use __DIR__
  Could Use Short Assignation
  Could Use str_repeat()
  Could Use Yield From
  Count() Is Not Negative
  curl_version() Has No Argument
  Dangling Array References
  Default Then Discard
  Deprecated Mb_string Encodings
  Dereferencing String And Arrays
  __DIR__ Then Slash
  Don't Add Seconds
  Don't Change The Blind Var
  Don't Mix ++
  Don't Read And Write In One Expression
  Don't Reuse Foreach Source
  Double Assignation
  Double Checks
  Double Instructions
  Double Object Assignation
  Drop Else After Return
  Echo With Concat
  Else If Versus Elseif
  Empty Blocks
  Empty Json Error
  Empty Instructions
  Empty Loop
  Empty Try Catch
  error_reporting() With Integers
  Eval() Usage
  eval() Without Try
  Exit() Usage
  Failed Substr() Comparison
  Switch Fallthrough
  For Using Functioncall
  Foreach Reference Is Not Modified
  Overwritten Source And Value
  Forgotten Whitespace
  Function Subscripting
  Global Inside Loop
  Global Usage
  Htmlentities Calls
  Htmlentities Using Default Flag
  Identical Case In Switch
  Identical Conditions
  Identical Consecutive Expression
  Identical On Both Sides
  Identical Variables In Foreach
  If With Same Conditions
  Iffectations
  Implicit Conversion To Int
  Implied If
  Implode() Arguments Order
  Indices Are Int Or String
  Infinite Recursion
  Invalid Cast
  Invalid Date Scanning Format
  Invalid Pack Format
  Invalid Regex
  Is Actually Zero
  list() May Omit Variables
  Logical Mistakes
  Lone Blocks
  Long Arguments
  Max Level Of Nesting
  Mbstring Unknown Encodings
  Mbstring Third Arg
  Mbstring Unknown Encoding
  Merge If Then
  Mismatched Ternary Alternatives
  Missing Assignation In Branches
  Missing Cases In Switch
  Maybe Missing New
  Missing Parenthesis
  Misused Yield
  Mixed Concat And Interpolation
  Modernize Empty With Expression
  Multiples Identical Case
  Multiple Type Cases In Switch
  Multiple Type Variable
  Multiply By One
  Negative Power
  Nested Ifthen
  Nested Loops
  Nested Match
  Nested Ternary
  Always Positive Comparison
  Next Month Trap
  No Append On Source
  Avoid array_unique()
  Avoid Large Array Assignation
  Don't Change Incomings
  No Choice
  No Direct Usage
  No Empty Regex
  No Empty String With explode()
  No get_class() With Null
  No Hardcoded Hash
  No Hardcoded Ip
  No Hardcoded Path
  No Hardcoded Port
  No isset() With empty()
  No Max On Empty Array
  No Need For Else
  No Need For Triple Equal
  No Null For Index
  No Object As Index
  No Parenthesis For Language Construct
  No Reference On Left Side
  No Return Or Throw In Finally
  Avoid Substr() One
  No Valid Cast
  Variable Is Not A Condition
  Non Integer Nor String As Index
  @ Operator
  Not Equal Is Not !==
  Not Not
  Objects Don't Need References
  include_once() Usage
  Several Instructions On The Same Line
  Only First Byte
  Only Variable Returned By Reference
  openssl_random_pseudo_byte() Second Argument
  Or Die
  Overwritten Foreach Var
  PHP7 Dirname
  Phpinfo
  Possible Infinite Loop
  Print And Die
  Avoid Parenthesis With Language Construct
  Printf Number Of Arguments
  Queries In Loops
  Random Without Try
  Recalled Condition
  Repeated print()
  Repeated Regex
  Results May Be Missing
  Return True False
  Same Conditions In Condition
  Should Chain Exception
  Should Use Ternary Operator
  Preprocessable
  Should Use Explode Args
  Simplify Regex
  Sprintf Format Compilation
  Static Inclusions
  Static Loop
  strip_tags() Skips Closed Tag
  Strpos()-like Comparison
  Strpos() Less Than One
  Suspicious Comparison
  Switch To Switch
  Switch Without Default
  Ternary In Concat
  Test Then Cast
  Throws An Assignement
  Timestamp Difference
  Unchecked Resources
  Unconditional Break In Loop
  Unkown Regex Options
  Unpreprocessed Values
  Unset In Foreach
  Unsupported Operand Types
  Unsupported Types With Operators
  Unused Global
  Use Constant Instead Of Function
  Avoid get_class()
  Use Positive Condition
  Use Same Types For Comparisons
  Use System Tmp
  Useless Brackets
  Useless Type Casting
  Useless Check
  Useless Coalesce
  Useless Global
  Useless Instructions
  Useless Null Coalesce
  Useless Parenthesis
  Useless Short Ternary
  Useless Switch
  Useless Unset
  var_dump()... Usage
  While(List() = Each())
  Wrong Locale
  Wrong Precedence In Expression
  Wrong Range Check
  preg_replace With Option e
  __toString() Throws Exception
  Already Parents Trait
  Cannot Call Static Trait Method Directly
  Constants In Traits
  Dependant Trait
  Empty Traits
  Final Traits Are Final
  Method Collision Traits
  No Private Abstract Method In Trait
  Trait Is Not A Type
  Trait Not Found
  Undefined Insteadof
  Undefined Trait
  Useless Method Alias
  Binary Glossary
  Hexadecimal In String
  No Real Comparison
  Invalid Octal In String
  One Variable String
  Should Typecast
  Silently Cast Integer
  String May Hold A Variable
  Strings With Strange Space
  Missing Some Returntype
  StandaloneType True False Null
  Wrong Type With Default
  Assigned Twice
  Constant Typo Looks Like A Variable
  Inherited Static Variable
  Lost References
  Overwritten Literals
  Recycled Variables
  Redeclared Static Variable
  Static Variable Initialisation
  Undefined Constant Name
  Undefined Variable
  Non Ascii Variables
  Used Once Variables
  Used Once Variables (In Scope)
  Written Only Variables