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Last active January 24, 2024 09:18
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PHP - Read/Write public/protected/private object property
<?php
// Access a property with no restrictions
function stole($object,$property){
$dict = (array)$object;
$class = get_class($object);
return isset($dict[$property])?
$dict[$property]:(isset($dict["\0*\0$property"])?
$dict["\0*\0$property"]:(isset($dict["\0$class\0$property"])?
$dict["\0$class\0$property"]:null));
}
// Modify a property with no restrictions
function inject(&$object,$property,$value){
$dict = (array)$object;
$class = get_class($object);
if (isset($dict["\0$class\0$property"])) {
$dict["\0$class\0$property"] = $value;
$object = castToClass($dict,$class);
} elseif (isset($dict["\0*\0$property"])) {
$dict["\0*\0$property"] = $value;
$object = castToClass($dict,$class);
} elseif (isset($dict[$property])) {
$object->$property = $value;
} else {
return ;
}
}
// Required because we don't know if className has a __set_state defined.
function castToClass(array $array,$className) {
return unserialize(
'O:'.strlen($className).':"'
.$className.'"'.strstr(serialize($array), ':')
);
}
// Example
class Safe {
private $content = 'gold';
}
$mySafe = new Safe();
// Inject value into a private property
inject($mySafe,'content','Magic!');
echo "I've robbed your ",stole($mySafe,'content'),"!";
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