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<?php class A { private $a; public function __construct(string $a) { $this->a = $a; } public function doStuff() { var_dump(isset($this->a), isset($a)); echo '$this->a holds the value of : ' . $this->a . PHP_EOL; echo '$a holds the value of : ' . $a . PHP_EOL; } } $aObject = new A("helloWorld"); $aObject->doStuff();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
bool(true) bool(false) $this->a holds the value of : helloWorld Warning: Undefined variable $a in /in/ovBDs on line 15 $a holds the value of :
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 bool(true) bool(false) $this->a holds the value of : helloWorld Warning: Undefined variable $a in /in/ovBDs on line 15 $a holds the value of :
Output for 7.1.25 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
bool(true) bool(false) $this->a holds the value of : helloWorld Notice: Undefined variable: a in /in/ovBDs on line 15 $a holds the value of :
Output for 7.3.32 - 7.3.33
bool(true) bool(false) $this->a holds the value of : helloWorld $a holds the value of :

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