<?php
class A {
private $name;
function __construct($param){
$this->name = 'liming'.'<br>';
}
function getName() {
echo $this->name;
}
// 调用子类中的方法getAge2
function getAge() {
$this->getAge2();
}
function getAge3() {
return '23';
}
}
class B extends A {
function getAge2(){
echo $this->getAge3();
}
}
(new A)->getAge();
Fatal error: Uncaught ArgumentCountError: Too few arguments to function A::__construct(), 0 passed in /in/CP9Op on line 27 and exactly 1 expected in /in/CP9Op:4
Stack trace:
#0 /in/CP9Op(27): A->__construct()
#1 {main}
thrown in /in/CP9Op on line 4
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
Fatal error: Uncaught ArgumentCountError: Too few arguments to function A::__construct(), 0 passed in /in/CP9Op on line 27 and exactly 1 expected in /in/CP9Op:4
Stack trace:
#0 /in/CP9Op(27): A->__construct()
#1 {main}
thrown in /in/CP9Op on line 4
Process exited with code 255.
Output for 7.0.33
Warning: Missing argument 1 for A::__construct(), called in /in/CP9Op on line 27 and defined in /in/CP9Op on line 4
Fatal error: Uncaught Error: Call to undefined method A::getAge2() in /in/CP9Op:13
Stack trace:
#0 /in/CP9Op(27): A->getAge()
#1 {main}
thrown in /in/CP9Op on line 13
Process exited with code 255.
Output for 5.6.38
Warning: Missing argument 1 for A::__construct(), called in /in/CP9Op on line 27 and defined in /in/CP9Op on line 4
Fatal error: Call to undefined method A::getAge2() in /in/CP9Op on line 13
Process exited with code 255.