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run code in 150+ php & hhvm versions
Bugs & Features
<?php class PropertyTest { /** Location for overloaded data. */ private $data = array(); /** Overloading not used on declared properties. */ public $declared = 1; /** Overloading only used on this when accessed outside the class. */ private $hidden = 2; public function __set($name, $value) { echo "Setting '$name' to '$value'\n"; $this->data[$name] = $value; } public function __get($name) { echo "Getting '$name'\n"; if (array_key_exists($name, $this->data)) { return $this->data[$name]; } $trace = debug_backtrace(); trigger_error( 'Undefined property via __get(): ' . $name . ' in ' . $trace[0]['file'] . ' on line ' . $trace[0]['line'], E_USER_NOTICE); return null; } /** As of PHP 5.1.0 */ public function __isset($name) { echo "Is '$name' set?\n"; return isset($this->data[$name]); } /** As of PHP 5.1.0 */ public function __unset($name) { echo "Unsetting '$name'\n"; unset($this->data[$name]); } /** Not a magic method, just here for example. */ public function getHidden() { return $this->hidden; } } echo "<pre>\n"; $obj = new PropertyTest; $obj->a = 1; ?>
Output for 5.0.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
<pre> Setting 'a' to '1'
Output for 4.4.2 - 4.4.9
<br /> <b>Parse error</b>: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in <b>/in/EoWuo</b> on line <b>5</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
<br /> <b>Parse error</b>: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in <b>/in/EoWuo</b> on line <b>5</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in <b>/in/EoWuo</b> on line <b>5</b><br />
Process exited with code 255.