Php::Array Utility Functions

include/array.h

@@ -81,6 +81,22 @@ class Array : public Value
         // call base
         return Value::setType(Type::Array);
     }
+
+    /**
+     *  Push a Php::Value to the array as stack
+     *  @param  value
+     */
+    int push(Value val); 
+
+    /**
+     *  Pop a Php::Value from the array as stack
+     */
+    Value pop();
+
+    /**
+     *  Get keys of the array like PHP's array_keys
+     */
+    Array getKeys();
 
     /**
      *  Assignment operator

zend/array.cpp

@@ -0,0 +1,104 @@
+/**
+ *  array.cpp
+ *
+ *  This file holds the implementation of the Php::Array functions
+ * 
+ *  @author tugrul <https://github.com/tugrul>
+ */
+
+/**
+ *  Dependencies
+ */
+#include "includes.h"
+
+/**
+ *  Open PHP namespace
+ */
+namespace Php {
+
+/**
+ *  Push a Php::Value to the array as stack
+ *  @param  value
+ */
+int Array::push(Value val)
+{
+    Array *value = static_cast<Array*>(&val);
+
+    Z_ADDREF_P(value->_val);
+
+    if (zend_hash_next_index_insert(Z_ARRVAL_P(_val), &value->_val, sizeof(zval *), NULL) == FAILURE) {
+        Z_DELREF_P(value->_val); 
+        Php::warning << "Cannot add element to the array as the next element is already occupied" << std::flush;
+    }
+
+    return count();
+}
+
+/**
+ *  Pop a Php::Value from the array as stack
+ */
+Value Array::pop()
+{
+    zval **val;
+
+    ulong numKey;
+    char *strKey = NULL;
+    uint strKeyLen = 0; 
+
+    if (count() == 0) {
+        return Value();
+    }
+
+    zend_hash_internal_pointer_end(Z_ARRVAL_P(_val));
+    zend_hash_get_current_data(Z_ARRVAL_P(_val), (void **)&val);
+
+    Value retVal(*val);
+
+    zend_hash_get_current_key_ex(Z_ARRVAL_P(_val), &strKey, &strKeyLen, &numKey, 0, NULL);
+    zend_hash_del_key_or_index(Z_ARRVAL_P(_val), strKey, strKeyLen, numKey, (strKey) ? HASH_DEL_KEY : HASH_DEL_INDEX);
+
+    if (!strKeyLen && Z_ARRVAL_P(_val)->nNextFreeElement > 0 && numKey >= Z_ARRVAL_P(_val)->nNextFreeElement - 1) {
+		Z_ARRVAL_P(_val)->nNextFreeElement = Z_ARRVAL_P(_val)->nNextFreeElement - 1;
+	}
+
+    zend_hash_internal_pointer_reset(Z_ARRVAL_P(_val));
+
+    return retVal;
+}
+
+/**
+ *  Get keys of the array like PHP's array_keys
+ */
+Array Array::getKeys()
+{
+    Array retVal;
+    HashPosition pos;
+    zval **entry;
+
+    zend_hash_internal_pointer_reset_ex(Z_ARRVAL_P(_val), &pos);
+    while (zend_hash_get_current_data_ex(Z_ARRVAL_P(_val), (void **)&entry, &pos) == SUCCESS) {
+
+        ulong numKey;
+        char *strKey;
+        uint strKeyLen; 
+
+        switch (zend_hash_get_current_key_ex(Z_ARRVAL_P(_val), &strKey, &strKeyLen, &numKey, 0, &pos)) {
+            case HASH_KEY_IS_STRING:
+                retVal.push(std::string(strKey, strKeyLen)); 
+                break; 
+
+            case HASH_KEY_IS_LONG: 
+                retVal.push((int32_t)numKey);
+                break;
+        }
+
+		zend_hash_move_forward_ex(Z_ARRVAL_P(_val), &pos);
+	}
+
+    return retVal;
+}
+
+/**
+ *  End of namespace
+ */
+}