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139.66 ms | 1390 KiB | 7 Q<?php
$rose = "black";
${"rose"} = "white";
$rose = "red";
print_r(${"rose"});
echo "\n\n";
/**
Parse error: syntax error, unexpected '123' (T_LNUMBER), expecting variable (T_VARIABLE) or '{' or '$'
$123 = 456;
var_dump($123);
**/
${"123"} = "white";
var_dump(${"123"});
echo '<PRE>';var_dump(get_defined_vars());
if( array_key_exists( '"123"',get_defined_vars() ) ){
echo "'123' in array";
}
else
{
echo "'123' NOT in array";
}
echo "\n\n";
$arr{"246a"} = 99;
var_dump($arr);
$o = (object) $arr;
var_dump($o);
echo $o->{"246a"},"\n\n";
class x extends stdClass {
public $val;
function Show($n){
$this->val = $n;
return $this->val;
}
}
$s = new x();
echo $s->Show(100),"\n";
var_dump($s);
var_dump($s instanceof stdClass);