2 Functions

LogMANOriginal edited this page 2018-11-05 13:28:10 +01:00

Table of Contents

• Parameters with default values must appear last in functions
• Calling functions
• Do not add spaces after opening or before closing bracket

Parameters with default values must appear last in functions

It is considered good practice to make parameters with default values last in function declarations.

Example

Bad

function showTitle($duration = 60000, $title) { ... }

Good

function showTitle($title, $duration = 60000) { ... }

Reference: PEAR.Functions.ValidDefaultValue

Calling functions

Function calls must follow a few rules in order to maintain readability throughout the project:

Do not add whitespace before the opening parenthesis

Example

Bad

$result = my_function ($param);

Good

$result = my_function($param);

Do not add whitespace after the opening parenthesis

Example

Bad

$result = my_function( $param);

Good

$result = my_function($param);

Do not add a space before the closing parenthesis

Example

Bad

$result = my_function($param );

Good

$result = my_function($param);

Do not add a space before a comma

Example

Bad

$result = my_function($param1 ,$param2);

Good

$result = my_function($param1, $param2);

Add a space after a comma

Example

Bad

$result = my_function($param1,$param2);

Good

$result = my_function($param1, $param2);

Reference: Generic.Functions.FunctionCallArgumentSpacing

Do not add spaces after opening or before closing bracket

Parenthesis must tightly enclose parameters.

Example

Bad

if( $condition ) { ... }

Good

if($condition) { ... }

Reference: PSR2.ControlStructures.ControlStructureSpacing

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