PHP Extension Development Notes (1) Creating an array property of a class

Initializing a class is easy, such as the following code
Myclass_proterty_* This correlation is the Define macro string

Zend_class_entry *myclass_ce;zend_function_entry myclass_methods[] = {Php_fe_end};    Php_minit_function (myext) {zend_class_entry CE; Init_class_entry (CE,"MyClass", myclass_methods);    Myclass_ce = Zend_register_internal_class (&ce tsrmls_cc); Zend_Declare_class_constant_string (Myclass_ce, Zend_strl (myclass_proterty_name_version), php_slim_version); Zend_Declare_property_null (Myclass_ce, Zend_strl (Myclass_proterty_name_container), Zend_acc_public TSRMLS_CC); Zend_Declare_property_null (Myclass_ce, Zend_strl (Myclass_proterty_name_apps), zend_acc_static|    Zend_acc_protected tsrmls_cc); Zend_Declare_property_null (Myclass_ce, Zend_strl (myclass_proterty_name_name), zend_acc_protected TSRMLS_CC); Zend_Declare_property_null (Myclass_ce, Zend_strl (myclass_proterty_name_error), zend_acc_protected TSRMLS_CC); Zend_Declare_property_null (Myclass_ce, Zend_strl (myclass_proterty_name_notfound), zend_acc_protected TSRMLS_CC); Zend_Declare_property_null (Myclass_ce, Zend_strl (myclass_proterty_name_middleware), zend_acc_protected TSRMLS_CC);returnSUCCESS;}

The above code is a few simple properties.
When you want to initialize an array's properties to the MyClass class, it fails, as opposed to the PHP code as follows

classMyClass {    public $myArray = array();}/* 对应的C代码 */zval *myArray;MAKE_STD_ZVAL(myArray);array_init(myArray);zend_declare_property(myclass_ce, ZEND_STRL(MYCLASS_PROTERTY_NAME_MYCLASS), myArray, ZEND_ACC_PUBLICTSRMLS_CC);

The above C code mutation did not find any problem, in the implementation of new MyClass () when the problem occurred, the error is as follows:

Internal zval's can'tor resources

Look at the Zend source code as follows:

if (ce->type & ZEND_INTERNAL_CLASS) {     switch(Z_TYPE_P(property)) {         caseIS_ARRAY:         caseIS_CONSTANT_ARRAY:         caseIS_OBJECT:         caseIS_RESOURCE:             zend_error(E_CORE_ERROR, "Internalzval'scan'tbearrays, objectsorresources");             break;         default:             break;     } }

When we call Zend_register_internal_class, Myclass_ce is initialized to Zend_internal_class, and at this point the zend_declare_ The MyArray parameter of the property is of type Is_array, so this error is generated.

Why does it make such a mistake?

The results I found below are: http://grokbase.com/t/php/php-internals/07a4b14xvb/ Php-dev-how-declare-protected-array-property-at-internal-class-properly This is the result of the 2007, I am using the php5.4 version of this, and temporarily still have this problem, the text also gives a disguised way to implement the array properties, by the constructor in the implementation.

PHP_METHOD(myclass, __construct) {    *apps*pThis;    pThis = getThis();    MAKE_STD_ZVAL(apps);    array_init(apps);    add_property_zval_ex(pThis, ZEND_STRL(SLIM_SLIM_PROTERTY_NAME_APPS), apps);}

This way of implementing the corresponding PHP code

classMyClass {function__construct() {$thisarray();      }}

The above describes the PHP extension development Note (1) to create an array of classes of properties, including aspects of the content, I hope to be interested in PHP tutorial friends helpful.

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