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<?php class StringNotEmptyType { public string $s; public function __construct(string $s) { $s = trim($s); if ($s === '') { throw new Exception('String must not be emtpy'); } $this->s = $s; } public function __toString() : string { return $this->s; } public static function create(string $s) : self { return new self($s); } } class Something { public StringNotEmptyType $s; } $okay = new Something(); $okay->s = StringNotEmptyType::create('not empty'); echo $okay->s; $okay = new Something(); $okay->s = StringNotEmptyType::create('');
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
not empty Fatal error: Uncaught Exception: String must not be emtpy in /in/1LqIj:11 Stack trace: #0 /in/1LqIj(25): StringNotEmptyType->__construct('') #1 /in/1LqIj(42): StringNotEmptyType::create('') #2 {main} thrown in /in/1LqIj on line 11
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 not empty Fatal error: Uncaught Exception: String must not be emtpy in /in/1LqIj:11 Stack trace: #0 /in/1LqIj(25): StringNotEmptyType->__construct('') #1 /in/1LqIj(42): StringNotEmptyType::create('') #2 {main} thrown in /in/1LqIj on line 11
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Parse error: syntax error, unexpected 'string' (T_STRING), expecting function (T_FUNCTION) or const (T_CONST) in /in/1LqIj on line 5
Process exited with code 255.
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