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<?php ini_set('error_reporting', -1); ini_set('display_errors', 'on'); class Foo { private static $a; public function __construct() { self::$a = range('A', 'Z'); } public function generator() { while(self::$a) { yield array_reverse(array_pop(self::$a)); } } } $foo = new Foo; $generator = $foo->generator(); if ($generator->valid()) { foreach($generator as $i) { echo $i; } } else { echo 'Nothing'; } $generator = $foo->generator(); if ($generator->valid()) { foreach($generator as $i) { echo $i; } } else { echo 'Nothing'; }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Fatal error: Uncaught TypeError: array_reverse(): Argument #1 ($array) must be of type array, string given in /in/TZku6:19 Stack trace: #0 /in/TZku6(19): array_reverse('Z') #1 [internal function]: Foo->generator() #2 /in/TZku6(26): Generator->valid() #3 {main} thrown in /in/TZku6 on line 19
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Fatal error: Uncaught TypeError: array_reverse(): Argument #1 ($array) must be of type array, string given in /in/TZku6:19 Stack trace: #0 /in/TZku6(19): array_reverse('Z') #1 [internal function]: Foo->generator() #2 /in/TZku6(26): Generator->valid() #3 {main} thrown in /in/TZku6 on line 19
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Warning: array_reverse() expects parameter 1 to be array, string given in /in/TZku6 on line 19 Nothing
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