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<?php ini_set('error_reporting', -1); ini_set('display_errors', 'on'); class Foo { private static $a = ['b' => ['4', '5', '6'], 'c' => ['1', '2', '3']]; public function generator() { foreach (self::$a as $k => $v) { yield $this->getType($k); } } public function getType(){ foreach (self::$a[$type] as $t) { yield $t; } self::$a[$type] = []; } } $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 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Fatal error: Uncaught Error: Object of class Generator could not be converted to string in /in/TN2dU:30 Stack trace: #0 {main} thrown in /in/TN2dU on line 30
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 Error: Object of class Generator could not be converted to string in /in/TN2dU:30 Stack trace: #0 {main} thrown in /in/TN2dU on line 30
Process exited with code 255.
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33
Recoverable fatal error: Object of class Generator could not be converted to string in /in/TN2dU on line 30
Process exited with code 255.
Output for 7.0.0 - 7.0.20
Catchable fatal error: Object of class Generator could not be converted to string in /in/TN2dU on line 30
Process exited with code 255.
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