<?php
function g($a, $b, $c) {
f($a, $b, $c);
}
function f(int $a, int $b = null, int $c = null) {
//xdebug_debug_zval('a', 'b', 'c');
error_log(json_encode([$a, $b, $c]));
error_log(json_encode(func_get_args()));
}
function add1($x) {
return ++$x;
}
function changeF($code, $str) {
error_log("in changeF");
//error_log($str);
preg_match('/^Argument (\\d+) /', $str, $m);
$i = $m[1]-1;
$a = "$i";
$bt = debug_backtrace(null, 2);
$bt1 = $bt[1]['args'];
//xdebug_debug_zval("bt1");
//print_r($bt);
$a = "$a {$bt[1]['args'][$i]}";
$bt[1]['args'][$i] = add1($bt[1]['args'][$i]);
$bt1 = $bt[1]['args'];
//xdebug_debug_zval("bt1");
$a = "$a {$bt[1]['args'][$i]}";
if (false && $i == 1) {
$a = "$a ({$bt[1]['args'][1+$i]}";
++$bt[1]['args'][1+$i];
$a = "$a {$bt[1]['args'][1+$i]})";
}
error_log($a);
//$zval = $bt[1]['args'][1];
//$bt[1]['args'][1] = add1($bt[1]['args'][1]);
//print_r($bt);
return true;
}
set_error_handler('changeF', E_ALL);
//f(2, 1);
g(3, 2, 1);
preferences:
43.57 ms | 402 KiB | 5 Q