Online PHP editor | output for fLaYN

@ 2019-04-07T10:55:06Z

<?php

class obj {
    protected function protected_function(){
        return true;
    }
    
    public function internal_is_callable(){
        var_dump(is_callable([$this, "protected_function"]));
    }
}

$obj = new obj();

# If called from "outside" a class, is_callable() will return FALSE
var_dump(is_callable([$obj, "protected_function"]));
//returns bool(false)

# Confusingly, if called from "inside" a class, is_callable() will return TRUE
$obj->internal_is_callable();
//returns bool(true)

Output for 5.4.16, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0 - 8.5.1: bool(false) bool(true)
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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