From ae4fa5f871d937773e9facde87a32784e715e3ae Mon Sep 17 00:00:00 2001
From: Martijn Otto <martijn.otto@copernica.com>
Date: Thu, 26 Mar 2015 09:13:20 +0100
Subject: Fixed the Value::contains method and added the isCallable(name)
 function to see if the object has an accessible member function

---
 include/value.h | 15 +++++++++++++--
 zend/value.cpp  | 35 ++++++++++++++++++++++++++---------
 2 files changed, 39 insertions(+), 11 deletions(-)

diff --git a/include/value.h b/include/value.h
index 5bfb94d..e080df7 100644
--- a/include/value.h
+++ b/include/value.h
@@ -978,10 +978,21 @@ public:
         return exec(sizeof...(Args), params);
     }
 
+    /**
+     *  Is a method with the given name callable?
+     *
+     *  This is only applicable when the Value contains a PHP object
+     *
+     *  @param  name        Name of the function
+     *  @return boolean
+     */
+    bool isCallable(const char *name);
+
     /**
      *  Call a method
-     *  We have ten variants of this function, depending on the number of parameters
-     *  This is only applicable when the Value contains PHP object
+     *
+     *  This is only applicable when the Value contains a PHP object
+     *
      *  @param  name        Name of the function
      *  @return Value
      */
diff --git a/zend/value.cpp b/zend/value.cpp
index 8f243f9..0d1f840 100644
--- a/zend/value.cpp
+++ b/zend/value.cpp
@@ -852,6 +852,26 @@ Value Value::operator()() const
     return exec(0, NULL);
 }
 
+/**
+ *  Is a method with the given name callable?
+ *
+ *  This is only applicable when the Value contains a PHP object
+ *
+ *  @param  name        Name of the function
+ *  @return boolean
+ */
+bool Value::isCallable(const char *name)
+{
+    // wrap the name in a Php::Value object to get a zval
+    Value method(name);
+
+    // we need the tsrm_ls variable
+    TSRMLS_FETCH();
+
+    // ask zend nicely whether the function is callable
+    return zend_is_callable_ex(method._val, _val, IS_CALLABLE_CHECK_NO_ACCESS, nullptr, nullptr, nullptr, nullptr TSRMLS_CC);
+}
+
 /**
  *  Call the method - if the variable holds an object with the given method
  *  @param  name        name of the method to call
@@ -1445,19 +1465,19 @@ bool Value::contains(int index) const
  *  Does the array contain a certain key
  *  @param  key
  *  @param  size
- *  @return boolean
+ *  @return 
  */
 bool Value::contains(const char *key, int size) const
 {
     // calculate size
     if (size < 0) size = ::strlen(key);
 
+    // unused variable
+    zval **result;
+
     // deal with arrays
     if (isArray())
     {
-        // unused variable
-        zval **result;
-
         // check if index is already in the array
         return zend_hash_find(Z_ARRVAL_P(_val), key, size+1, (void **)&result) != FAILURE;
     }
@@ -1469,11 +1489,8 @@ bool Value::contains(const char *key, int size) const
         // retrieve the object pointer and check whether the property we are trying to retrieve is marked as private/protected
         if (zend_check_property_access(zend_objects_get_address(_val TSRMLS_CC), key, size TSRMLS_CC) == FAILURE) return false;
 
-        // read the property (cast necessary for php 5.3)
-        zval *property = zend_read_property(nullptr, _val, (char *)key, size, 1 TSRMLS_CC);
-
-        // check if valid
-        return property != nullptr;
+        // check if the property is set inside the hashtable of the object
+        return zend_hash_find(Z_OBJPROP_P(_val), key, size+1, (void **)&result) != FAILURE;
     }
     else
     {
-- 
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