<?php
class Foo { public $bar; }
$foo = new Foo;
$arr = array("", " ", FALSE, TRUE, array(), NULL, "0", 0, 0.0, new stdClass, $foo, $foo->bar, "\0");
define('PAD', 20);
$headings = array('type', 'if', 'isset', 'empty', 'is_null');
foreach($headings as $heading){ echo str_pad($heading, PAD), " | "; }
echo "\n";
$x = str_pad("TRUE", PAD) . " | ";
$y = str_pad("", PAD) . " | ";
foreach($arr as $val){
echo str_pad(gettype($val) . "(" . $val . ")", PAD), " | ";
echo $val ? $x : $y;
echo isset($val) ? $x : $y;
echo empty($val) ? $x : $y;
echo is_null($val) ? $x : $y;
echo "\n";
}
- Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
- type | if | isset | empty | is_null |
string() | | TRUE | TRUE | |
string( ) | TRUE | TRUE | | |
boolean() | | TRUE | TRUE | |
boolean(1) | TRUE | TRUE | | |
Warning: Array to string conversion in /in/rs0dX on line 15
array(Array) | | TRUE | TRUE | |
NULL() | | | TRUE | TRUE |
string(0) | | TRUE | TRUE | |
integer(0) | | TRUE | TRUE | |
double(0) | | TRUE | TRUE | |
Fatal error: Uncaught Error: Object of class stdClass could not be converted to string in /in/rs0dX:15
Stack trace:
#0 {main}
thrown in /in/rs0dX on line 15
Process exited with code 255. - Output for 7.4.0 - 7.4.33
- type | if | isset | empty | is_null |
string() | | TRUE | TRUE | |
string( ) | TRUE | TRUE | | |
boolean() | | TRUE | TRUE | |
boolean(1) | TRUE | TRUE | | |
Notice: Array to string conversion in /in/rs0dX on line 15
array(Array) | | TRUE | TRUE | |
NULL() | | | TRUE | TRUE |
string(0) | | TRUE | TRUE | |
integer(0) | | TRUE | TRUE | |
double(0) | | TRUE | TRUE | |
Fatal error: Uncaught Error: Object of class stdClass could not be converted to string in /in/rs0dX:15
Stack trace:
#0 {main}
thrown in /in/rs0dX on line 15
Process exited with code 255. - Output for 7.3.32 - 7.3.33
- type | if | isset | empty | is_null |
string() | | TRUE | TRUE | |
string( ) | TRUE | TRUE | | |
boolean() | | TRUE | TRUE | |
boolean(1) | TRUE | TRUE | | |
array(Array) | | TRUE | TRUE | |
NULL() | | | TRUE | TRUE |
string(0) | | TRUE | TRUE | |
integer(0) | | TRUE | TRUE | |
double(0) | | TRUE | TRUE | |
Recoverable fatal error: Object of class stdClass could not be converted to string in /in/rs0dX on line 15
Process exited with code 255. - Output for 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31
- type | if | isset | empty | is_null |
string() | | TRUE | TRUE | |
string( ) | TRUE | TRUE | | |
boolean() | | TRUE | TRUE | |
boolean(1) | TRUE | TRUE | | |
Notice: Array to string conversion in /in/rs0dX on line 15
array(Array) | | TRUE | TRUE | |
NULL() | | | TRUE | TRUE |
string(0) | | TRUE | TRUE | |
integer(0) | | TRUE | TRUE | |
double(0) | | TRUE | TRUE | |
Recoverable fatal error: Object of class stdClass could not be converted to string in /in/rs0dX on line 15
Process exited with code 255. - Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20
- type | if | isset | empty | is_null |
string() | | TRUE | TRUE | |
string( ) | TRUE | TRUE | | |
boolean() | | TRUE | TRUE | |
boolean(1) | TRUE | TRUE | | |
Notice: Array to string conversion in /in/rs0dX on line 15
array(Array) | | TRUE | TRUE | |
NULL() | | | TRUE | TRUE |
string(0) | | TRUE | TRUE | |
integer(0) | | TRUE | TRUE | |
double(0) | | TRUE | TRUE | |
Catchable fatal error: Object of class stdClass could not be converted to string in /in/rs0dX on line 15
Process exited with code 255.
preferences:
233.07 ms | 403 KiB | 238 Q