added array_count_values function.

php · Sep 20, 1999 · 4bb329e · 4bb329e
1 parent 22d6f64
commit 4bb329e
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diff --git a/ChangeLog b/ChangeLog
@@ -2,6 +2,7 @@ PHP 4.0 CHANGE LOG                                                    ChangeLog
 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 
 ?? ?? 1999, Version 4.0 Beta 3
+- Added array_count_values() function. (Thies)
 - snmp, pgsql, mysql and gd modules can be built as dynamically loaded 
   modules (Greg)
 - OCI8 fix for fetching empty LOBs (Thies)

diff --git a/ext/standard/basic_functions.c b/ext/standard/basic_functions.c
@@ -337,6 +337,7 @@ function_entry basic_functions[] = {
 	PHP_FE(array_merge,					NULL)
 	PHP_FE(array_keys,					NULL)
 	PHP_FE(array_values,				NULL)
+	PHP_FE(array_count_values,		   	NULL)
 
 	PHP_FE(connection_aborted,			NULL)
 	PHP_FE(connection_timeout,			NULL)
@@ -3243,6 +3244,66 @@ PHP_FUNCTION(array_values)
 }
 /* }}} */
 
+/* {{{ proto array array_count_values(array input)
+   Return the value as key and the frequency of that value in <input> as value */
+PHP_FUNCTION(array_count_values)
+{
+	zval	   **input,		/* Input array */
+			   **entry;		/* An entry in the input array */
+	zval       **tmp;
+	HashTable   *myht;
+
+	/* Get arguments and do error-checking */
+	if (ARG_COUNT(ht) != 1 || getParametersEx(1, &input) == FAILURE) {
+		WRONG_PARAM_COUNT;
+	}
+
+	if ((*input)->type != IS_ARRAY) {
+		zend_error(E_WARNING, "Argument to array_count_values() should be an array");
+		return;
+	}
+
+	/* Initialize return array */
+	array_init(return_value);
+
+	/* Go through input array and add values to the return array */	
+	myht = (*input)->value.ht;
+	zend_hash_internal_pointer_reset(myht);
+	while (zend_hash_get_current_data(myht, (void **)&entry) == SUCCESS) {
+		if ((*entry)->type == IS_LONG) {
+			if (zend_hash_index_find(return_value->value.ht, 
+									 (*entry)->value.lval, 
+									 (void**)&tmp) == FAILURE) {
+				zval *data;
+				MAKE_STD_ZVAL(data);
+				data->type = IS_LONG;
+				data->value.lval = 1;
+				zend_hash_index_update(return_value->value.ht,(*entry)->value.lval, &data, sizeof(data), NULL);
+			} else {
+				(*tmp)->value.lval++;
+			}
+		} else if ((*entry)->type == IS_STRING) {
+			if (zend_hash_find(return_value->value.ht, 
+							   (*entry)->value.str.val, 
+							   (*entry)->value.str.len+1, 
+							   (void**)&tmp) == FAILURE) {
+				zval *data;
+				MAKE_STD_ZVAL(data);
+				data->type = IS_LONG;
+				data->value.lval = 1;
+				zend_hash_update(return_value->value.ht,(*entry)->value.str.val,(*entry)->value.str.len + 1, &data, sizeof(data), NULL);
+			} else {
+				(*tmp)->value.lval++;
+			}
+		} else {
+			zend_error(E_WARNING, "Can only count STRING and INTEGER values!");
+		}
+
+		zend_hash_move_forward(myht);
+	}
+}
+/* }}} */
+
 
 /*
  * Local variables:

diff --git a/ext/standard/basic_functions.h b/ext/standard/basic_functions.h
@@ -141,6 +141,7 @@ PHP_FUNCTION(array_slice);
 PHP_FUNCTION(array_merge);
 PHP_FUNCTION(array_keys);
 PHP_FUNCTION(array_values);
+PHP_FUNCTION(array_count_values);
 
 #if HAVE_PUTENV
 typedef struct {