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<?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 $val){ echo str_pad(print($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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
type | if | isset | empty | is_null | 1 | | TRUE | TRUE | | 1 | TRUE | TRUE | | | 1 | | TRUE | TRUE | | 11 | TRUE | TRUE | | | Warning: Array to string conversion in /in/Z0S2c on line 15 Array1 | | TRUE | TRUE | | 1 | | | TRUE | TRUE | 01 | | TRUE | TRUE | | 01 | | TRUE | TRUE | | 01 | | TRUE | TRUE | | Fatal error: Uncaught Error: Object of class stdClass could not be converted to string in /in/Z0S2c:15 Stack trace: #0 {main} thrown in /in/Z0S2c on line 15
Process exited with code 255.
Output for 7.4.0 - 7.4.33
type | if | isset | empty | is_null | 1 | | TRUE | TRUE | | 1 | TRUE | TRUE | | | 1 | | TRUE | TRUE | | 11 | TRUE | TRUE | | | Notice: Array to string conversion in /in/Z0S2c on line 15 Array1 | | TRUE | TRUE | | 1 | | | TRUE | TRUE | 01 | | TRUE | TRUE | | 01 | | TRUE | TRUE | | 01 | | TRUE | TRUE | | Fatal error: Uncaught Error: Object of class stdClass could not be converted to string in /in/Z0S2c:15 Stack trace: #0 {main} thrown in /in/Z0S2c on line 15
Process exited with code 255.
Output for 7.3.32 - 7.3.33
type | if | isset | empty | is_null | 1 | | TRUE | TRUE | | 1 | TRUE | TRUE | | | 1 | | TRUE | TRUE | | 11 | TRUE | TRUE | | | Array1 | | TRUE | TRUE | | 1 | | | TRUE | TRUE | 01 | | TRUE | TRUE | | 01 | | TRUE | TRUE | | 01 | | TRUE | TRUE | | Recoverable fatal error: Object of class stdClass could not be converted to string in /in/Z0S2c 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 | 1 | | TRUE | TRUE | | 1 | TRUE | TRUE | | | 1 | | TRUE | TRUE | | 11 | TRUE | TRUE | | | Notice: Array to string conversion in /in/Z0S2c on line 15 Array1 | | TRUE | TRUE | | 1 | | | TRUE | TRUE | 01 | | TRUE | TRUE | | 01 | | TRUE | TRUE | | 01 | | TRUE | TRUE | | Recoverable fatal error: Object of class stdClass could not be converted to string in /in/Z0S2c 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 - 5.6.21, 7.0.0 - 7.0.20
type | if | isset | empty | is_null | 1 | | TRUE | TRUE | | 1 | TRUE | TRUE | | | 1 | | TRUE | TRUE | | 11 | TRUE | TRUE | | | Notice: Array to string conversion in /in/Z0S2c on line 15 Array1 | | TRUE | TRUE | | 1 | | | TRUE | TRUE | 01 | | TRUE | TRUE | | 01 | | TRUE | TRUE | | 01 | | TRUE | TRUE | | Catchable fatal error: Object of class stdClass could not be converted to string in /in/Z0S2c on line 15
Process exited with code 255.
preferences:
201.25 ms | 403 KiB | 242 Q