Yii2 Framework Essay 18

<?PHP/** * Sets value of a object property.     * Set the property value of the object. * Do not call the This method directly as it's a PHP magic method that * would be implicitly called when executing ' $OBJEC     T->property = $value; '. * * Magic method, implement Setter * * @param string $name The property name or the event name * @param mixed $value the P Roperty value * @throws unknownpropertyexception if the property was not defined * @throws invalidcallexception if The property is Read-only * @see __get ()*/     Publicfunction __set ($name, $value) {$setter='Set'. $name; if(Method_exists ($ This, $setter)) {            //object exists $setter method, it is called directly$ This-$setter ($value); } elseif (Method_exists ($ This,'Get'. $name)) {            //If there is a ' get '. $name method, the property is considered read-only            Throw NewInvalidcallexception ('Setting read-only Property:'. Get_class ($ This) .'::'. $name); } Else {            //Otherwise, the attribute is not considered to exist            Throw NewUnknownpropertyexception ('Setting Unknown Property:'. Get_class ($ This) .'::'. $name); }    }     /** * Checks If the named property was set (NOT null). * Check if the property is set * * Does not call the This method directly as it is a PHP magic method which * will be implicitly called     When executing ' isset ($object->property) '.     * Do not call this method directly, because it is a PHP magic method, call execution ' Isset ($object->property) '.     * Note If the property is not defined, false would be returned.     * * Magic method, implement Isset, based on getter implementation, the property of getter method is counted to exist * * @param string $name The properties name or the event name     * @return Boolean whether the named property is set (NOT null). */     Publicfunction __isset ($name) {$getter='Get'. $name; if(Method_exists ($ This, $getter)) {            //There is a $getter method and the obtained value is not null before the attribute is considered to exist            return$ This$getter ()!==NULL; } Else {            return false; }    }    /** * Sets an object property to null. * Don't call the This method directly as it's a PHP magic method that * would be implicitly called when executing '     unset ($object->property) '.     * Do not call this method directly, because it is a PHP magic method, call execution ' Isset ($object->property) '.     * Note If the property was not a defined, this method would do nothing.     * If The property is read-only, it'll throw an exception. * * Magic method, implement unset, based on setter implementation, with setter method properties to unset out * * @param string $name The property name * @throw     S Invalidcallexception if the property was read only. */     Publicfunction __unset ($name) {$setter='Set'. $name; if(Method_exists ($ This, $setter)) {            //set it to null by $setter method$ This$setter (NULL); } elseif (Method_exists ($ This,'Get'. $name)) {            //If there is a ' get '. $name method, the property is considered read-only            Throw NewInvalidcallexception ('unsetting read-only Property:'. Get_class ($ This) .'::'. $name); }    }    /** * Calls the named method which is not a class method. * Don't call the This method directly as it's a PHP magic method that * would be implicitly called if an unknown     method is being invoked. * Override the __call () method, call this method when calling a non-existent method, throw an exception * @param string $name The method name * @param array $params method paramete RS * @throws unknownmethodexception when calling unknown method * @return Mixed the method return value*/     Publicfunction __call ($name, $params)    {        Throw NewUnknownmethodexception ('calling unknown method:'. Get_class ($ This) . ":: $name ()"); }    /** * Returns A value indicating whether a property is defined.     * Returns a value indicating whether the attribute is defined.    * A property is defined if: * *-the class have A getter or setter method associated with the specified name *     (The property name is case-insensitive);     *-The class has a member variable with the specified name (when ' $checkVars ' is true);     * * Check whether an object or class has a $name property, and if $checkVars is true, it is not limited to whether there is a getter/setter * * @param string $name the name  * @param boolean $checkVars whether to treat member variables as properties * @return Boolean whether the property is defined * @see cangetproperty () * @see Cansetproperty ()*/     Publicfunction Hasproperty ($name, $checkVars =true)    {        return$ This->cangetproperty ($name, $checkVars) | | $ This->cansetproperty ($name,false); }    /** * Returns A value indicating whether a property can be read. * A property is readable if: * *-the class have A getter method associated with the specified name * (in th     is case, property name is case-insensitive);     *-The class has a member variable with the specified name (when ' $checkVars ' is true);  * * Check whether the object or class can get $name property, if $checkVars is true, is not limited to whether there is a getter * * @param string $name the name * @param boolean $checkVars whether to treat member variables as properties * @return Boolean whether the property can Be read * @see Cansetproperty ()

Yii2 Framework Essay 18