TTL + test.

php_redis.h

@@ -71,6 +71,7 @@ PHP_METHOD(Redis, lastSave);
 PHP_METHOD(Redis, flushDB);
 PHP_METHOD(Redis, flushAll);
 PHP_METHOD(Redis, dbSize);
+PHP_METHOD(Redis, ttl);
 
 #ifdef PHP_WIN32
 #define PHP_REDIS_API __declspec(dllexport)

redis.c

@@ -85,6 +85,7 @@ zend_function_entry redis_functions[] = {
      PHP_ME(Redis, flushDB, NULL, ZEND_ACC_PUBLIC)
      PHP_ME(Redis, flushAll, NULL, ZEND_ACC_PUBLIC)
      PHP_ME(Redis, dbSize, NULL, ZEND_ACC_PUBLIC)
+     PHP_ME(Redis, ttl, NULL, ZEND_ACC_PUBLIC)
      PHP_MALIAS(Redis, open, connect, NULL, ZEND_ACC_PUBLIC)
      {NULL, NULL, NULL}
 };
@@ -2434,6 +2435,47 @@ PHP_METHOD(Redis, dbSize)
 }
 /* }}} */
 
+/* {{{ proto long Redis::ttl(string key)
+ */
+PHP_METHOD(Redis, ttl) {
 
+    zval *object;
+    RedisSock *redis_sock;
+
+    char *cmd, *response, *key;
+    int cmd_len, response_len, key_len;
+    long ttl;
+
+    if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Os",
+                                     &object, redis_ce, &key, &key_len) == FAILURE) {
+        RETURN_FALSE;
+    }
+
+    if (redis_sock_get(object, &redis_sock TSRMLS_CC) < 0) {
+        RETURN_FALSE;
+    }
+
+    cmd_len = redis_cmd_format(&cmd, "TTL %s\r\n", key, key_len);
+
+    if (redis_sock_write(redis_sock, cmd, cmd_len) < 0) {
+        efree(cmd);
+        RETURN_FALSE;
+    }
+    efree(cmd);
+
+    if ((response = redis_sock_read(redis_sock, &response_len TSRMLS_CC)) == NULL) {
+        RETURN_FALSE;
+    }
+
+    if (response[0] == ':') {
+        ttl = atol(response + 1);
+        efree(response);
+        RETURN_LONG(ttl);
+    } else {
+        efree(response);
+        RETURN_FALSE;
+    }
+}
+/* }}} */
 
 /* vim: set tabstop=4 expandtab: */

tests/TestRedis.php

@@ -1072,6 +1072,14 @@ class Redis_Test extends PHPUnit_Framework_TestCase
 	$this->assertTrue($this->redis->dbSize() === 1);
     }
 
+    public function testttl() {
+	$this->redis->set('x', 'y');
+	$this->redis->setTimeout('x', 5);
+	for($i = 5; $i > 0; $i--) {
+		$this->assertEquals($i, $this->redis->ttl('x'));
+		sleep(1);
+	}
+    }
 
 }