Online PHP editor | output for g5HRH

@ 2017-11-03T14:05:46Z

<?php

trait ATrait {
    public function a(){
        return 'Aa';
    }
}

trait BTrait {
    public function a(){
        return 'Ba';
    }
}

class C {
    use ATrait{
        a as aa;
    }
    use BTrait{
        a as ba;
    }
    
    public function a() {
        return static::aa() . static::ba();
    }
}

$o = new C;
echo $o->a(), "\n";

class C1 {
    use BTrait{
        a as ba;
    }
    use ATrait{
        a as aa;
    }
    
    public function a() {
        return static::aa() . static::ba();
    }
}

$o = new C1;
echo $o->a(), "\n";

class D {
    use ATrait{
        ATrait::a as aa;
    }
    use BTrait{
        BTrait::a as ba;
    }
    
    public function a() {
        return static::aa() . static::ba();
    }
}

$o = new D;
echo $o->a(), "\n";


class E {
    use ATrait{
        ATrait::a as aa;
        ATrait::a insteadof BTrait;
    }
    use BTrait{
        BTrait::a as ba;
    }
    
    public function e() {
        return static::aa() . static::ba();
    }
}

$o = new E;
echo $o->e(), "\n";

class F {
    use ATrait{
        a as aa;
    }
    use BTrait{
        a as ba;
    }
    
    public function f() {
        return static::aa() . static::ba();
    }
}

$o = new F;
echo $o->f(), "\n";

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7: Fatal error: An alias was defined for method a(), which exists in both ATrait and BTrait. Use ATrait::a or BTrait::a to resolve the ambiguity in /in/g5HRH on line 15
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33: AaAa BaBa AaBa Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; E has a deprecated constructor in /in/g5HRH on line 64 AaBa Fatal error: Trait method a has not been applied, because there are collisions with other trait methods on F in /in/g5HRH on line 81
Process exited with code 255.
Output for 7.3.32 - 7.3.33: AaAa BaBa AaBa AaBa Fatal error: Trait method a has not been applied, because there are collisions with other trait methods on F in /in/g5HRH on line 81
Process exited with code 255.
Output for 5.6.0 - 5.6.40: AaAa BaBa AaBa AaBa Fatal error: Trait method a has not been applied, because there are collisions with other trait methods on F in /in/g5HRH on line 92
Process exited with code 255.

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