<?php
function f($data) {
var_dump($data);
var_dump(filter_var($data, FILTER_VALIDATE_INT));
echo PHP_EOL;
}
f(null);
f(false);
f(0);
f("0");
f(1);
f("1");
f(array());
f(array(0));
f(array(1));
class ToStringAble {
function __toString() {
return "0";
}
}
f(new ToStringAble());
f(new stdclass());
- Output for 5.2.11 - 5.2.17, 5.3.1 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 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 - 8.1.30, 8.2.0 - 8.2.25, 8.3.0 - 8.3.13
- NULL
bool(false)
bool(false)
bool(false)
int(0)
int(0)
string(1) "0"
int(0)
int(1)
int(1)
string(1) "1"
int(1)
array(0) {
}
bool(false)
array(1) {
[0]=>
int(0)
}
bool(false)
array(1) {
[0]=>
int(1)
}
bool(false)
object(ToStringAble)#1 (0) {
}
int(0)
object(stdClass)#1 (0) {
}
bool(false)
- Output for 5.2.0 - 5.2.10, 5.3.0
- NULL
bool(false)
bool(false)
bool(false)
int(0)
int(0)
string(1) "0"
int(0)
int(1)
int(1)
string(1) "1"
int(1)
array(0) {
}
bool(false)
array(1) {
[0]=>
int(0)
}
bool(false)
array(1) {
[0]=>
int(1)
}
bool(false)
object(ToStringAble)#1 (0) {
}
int(0)
object(stdClass)#1 (0) {
}
Catchable fatal error: Object of class stdClass could not be converted to string in /in/Y2L95 on line 5
Process exited with code 255. - Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
- NULL
Fatal error: Call to undefined function filter_var() in /in/Y2L95 on line 5
Process exited with code 255. - Output for 4.4.5 - 4.4.9
- NULL
Fatal error: Call to undefined function: filter_var() in /in/Y2L95 on line 5
Process exited with code 255. - Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
- NULL
Fatal error: Call to undefined function: filter_var() in /in/Y2L95 on line 5
Process exited with code 255. - Output for 4.3.0 - 4.3.1
- NULL
Fatal error: Call to undefined function: filter_var() in /in/Y2L95 on line 5
preferences:
47.68 ms | 411 KiB | 5 Q