Online PHP editor | rfc for mN7In

@ 2015-06-12T14:25:10Z

<?php

trait x
{
    public function foo()
    {
        echo 'Trait x foo()';
    }

    public function bar()
    {
        echo 'Trait x bar()';
    }
}

class z
{
    use x;

    public function foo()
    {
        echo 'Class foo()';
    }
}


function getTraitMethodsRefs(ReflectionClass $class)
{
    $traitMethods = call_user_func_array('array_merge', array_map(function(ReflectionClass $ref) {
        return $ref->getMethods();
    }, $class->getTraits()));
    $traitMethods = call_user_func_array('array_merge', array_map(function (ReflectionMethod $method) {
        return [spl_object_hash($method) => $method->getName()];
    }, $traitMethods));
    
    return $traitMethods;    
}

function getClassMethodsRefs(ReflectionClass $class)
{
    return call_user_func_array('array_merge', array_map(function (ReflectionMethod $method) {
        return [spl_object_hash($method) => $method->getName()];
    }, $class->getMethods()));
}

$obj = new z;
$ref = new ReflectionClass($obj);

$traitRefs   = getTraitMethodsRefs($ref);
$classRefs   = getClassMethodsRefs($ref);

$traitOnlyHashes = array_diff(
    array_keys($traitRefs),
    array_keys($classRefs)
);

$traitOnlyMethods = array_intersect_key($traitRefs, array_flip($traitOnlyHashes));

var_dump(
    $traitRefs,
    $classRefs,
    $traitOnlyMethods
);

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Uncaught ArgumentCountError: array_merge() does not accept unknown named parameters in /in/mN7In:31 Stack trace: #0 /in/mN7In(31): array_merge(x: Array) #1 /in/mN7In(49): getTraitMethodsRefs(Object(ReflectionClass)) #2 {main} thrown in /in/mN7In on line 31
Process exited with code 255.

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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