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POphp extension: can not update class field using zend_hash_update
 

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  1. POphp extension: can not update class field using zend_hash_update
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    <p>I want to realize this class into php extension:</p> <pre><code>class MyClass { protected $attrs = array(); public function __construct($id = null) { $this-&gt;attrs['id'] = $id; $this-&gt;attrs['name'] = ''; } public function __get($key) { if (array_key_exists($key, $this-&gt;attr)) return $this-&gt;attrs[$key]; } public function __set($key, $value) { if (array_key_exists($key, $this-&gt;attr)) $this-&gt;attrs[$key] = $value; } } </code></pre> <p>I've already implemented __constructor, $attrs field, and __get method. And now I can't figure about __set.</p> <p>There is my c code:</p> <pre><code>PHP_METHOD(MyClass, __set) { char *key; int key_len; zval *value; if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sz", &amp;key, &amp;key_len, &amp;value)) { RETURN_NULL(); } zval *attrs, *obj; obj = getThis(); attrs = zend_read_property(Z_OBJCE_P(obj), obj, "attrs", strlen("attrs"), TRUE, TSRMLS_C); if (Z_TYPE_P(attrs) == IS_ARRAY &amp;&amp; zend_hash_exists(Z_ARRVAL_P(attrs), key, strlen(key) + 1)) { zend_hash_update(Z_ARRVAL_P(attributes), key, strlen(key) + 1, &amp;value, sizeof(zval*), NULL); } else { zend_throw_exception_ex(zend_exception_get_default(TSRMLS_C), 1, TSRMLS_C, "unknown field \"%s\"", key); } } </code></pre> <p>Where attrs - declared protected property in init function (I've declared property as null, but when I add data to $attrs in constructor - property updates to be an array)</p> <pre><code>zend_declare_property_null(myclass_ce, "attrs", strlen("attrs"), ZEND_ACC_PROTECTED TSRMLS_CC); </code></pre> <p>So my question is: how I need to update my attr field in c? My extensions succesfully compiles, I can define properties, read them, but I can't set them - because setted value becomes null, example:</p> <pre><code>class MyClass2 extends MyClass { public function __construct($id = null) { parent::__construct($id); $this-&gt;attrs["type"] = "clz"; } } $c = new MyClass(); var_dump($c-&gt;type); // string(3) "clz" $c-&gt;type = "myclz"; // no error, my __set method handles this call, and I'm sure I'm getting correct value var_dump($c-&gt;type); // NULL </code></pre> <p>I'm new to c development and I really need help.</p> <p><strong>UPD 1.</strong> I've tried change __set body to this:</p> <pre><code>zval *strval; MAKE_STD_ZVAL(strval); ZVAL_STRING(strval, Z_STRVAL_P(value), TRUE); if (Z_TYPE_P(attributes) == IS_ARRAY &amp;&amp; zend_hash_exists(Z_ARRVAL_P(attributes), key, strlen(key) + 1)) { zend_hash_update(HASH_OF(attributes), key, strlen(key) + 1, &amp;strval, sizeof(zval*), NULL); } </code></pre> <p>And now I can set string values. If I need to make switch on each type of zval??</p>
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