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<?php $arr = [null, 0, 100, -1234, 123.456, true, false, new StdClass(), 'test', '']; foreach ($arr as $val) { var_dump($val, strlen($val)); }
Output for 8.1.18 - 8.1.28, 8.2.5 - 8.2.18, 8.3.0 - 8.3.7
Deprecated: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in /in/Xklhp on line 5 NULL int(0) int(0) int(1) int(100) int(3) int(-1234) int(5) float(123.456) int(7) bool(true) int(1) bool(false) int(0) Fatal error: Uncaught TypeError: strlen(): Argument #1 ($string) must be of type string, stdClass given in /in/Xklhp:5 Stack trace: #0 {main} thrown in /in/Xklhp on line 5
Process exited with code 255.
Output for 8.1.0 - 8.1.17, 8.2.0 - 8.2.4
Deprecated: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in /in/Xklhp on line 5 NULL int(0) int(0) int(1) int(100) int(3) int(-1234) int(5) float(123.456) int(7) bool(true) int(1) bool(false) int(0) Fatal error: Uncaught TypeError: strlen(): Argument #1 ($str) must be of type string, stdClass given in /in/Xklhp:5 Stack trace: #0 {main} thrown in /in/Xklhp on line 5
Process exited with code 255.
Output for 8.0.0 - 8.0.30
NULL int(0) int(0) int(1) int(100) int(3) int(-1234) int(5) float(123.456) int(7) bool(true) int(1) bool(false) int(0) Fatal error: Uncaught TypeError: strlen(): Argument #1 ($str) must be of type string, stdClass given in /in/Xklhp:5 Stack trace: #0 {main} thrown in /in/Xklhp on line 5
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
NULL int(0) int(0) int(1) int(100) int(3) int(-1234) int(5) float(123.456) int(7) bool(true) int(1) bool(false) int(0) Warning: strlen() expects parameter 1 to be string, object given in /in/Xklhp on line 5 object(stdClass)#1 (0) { } NULL string(4) "test" int(4) string(0) "" int(0)
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/Xklhp on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/Xklhp on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Xklhp on line 3
Process exited with code 255.
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