Viewing file:  string_handler.php (1.04 KB) -rw-rw-r--
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<?php
/*
* Test everywhere an object might be converted into a string
*/
unset ($GLOBALS);
class Handled
{
function __toString ()
{
static $count = 0;
$count++;
$result = "Hit $count\n\n";
echo $result;
return $result;
}
}
function name ($title)
{
echo "\n\n******** $title ********************\n";
}
$x = new Handled;
name ("Call to explode");
$a = explode ($x, $x);
var_dump ($a);
name ("Call to define");
var_dump (define ($x, "ASD"));
name ("Concatenation");
$a1 = "" . $x;
$a1a = $x . $x;
$a1b = $x . "a string";
var_dump ($a1, $a1a, $a1b);
name ("Cast");
$a2 = (string)($x);
var_dump ($a2);
name ("As a field index");
$b->$x = 5;
var_dump ($b);
name ("As an array index");
$c[$x] = 6;
var_dump ($c);
name ("In a var-var");
$$x = 10;
var_dump ($GLOBALS);
name ("In a branch");
if ($x)
{
echo "true\n";
}
else
{
echo "false\n";
}
name ("TODO: Others, which we can;t test so well:");
name ("TODO: variable methods");
name ("TODO: variable class instantiations");
?>
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