diff --git a/phpmon-tests/Parsers/PhpConfigurationTest.swift b/phpmon-tests/Parsers/PhpConfigurationTest.swift
index de26703..750037b 100644
--- a/phpmon-tests/Parsers/PhpConfigurationTest.swift
+++ b/phpmon-tests/Parsers/PhpConfigurationTest.swift
@@ -22,6 +22,24 @@ class PhpConfigurationTest: XCTestCase {
         XCTAssertGreaterThan(iniFile.extensions.count, 0)
     }
 
+    func testCanCheckKeyExistence() throws {
+        let iniFile = PhpConfigurationFile.from(filePath: Self.phpIniFileUrl.path)!
+
+        XCTAssertTrue(iniFile.has(key: "error_reporting"))
+        XCTAssertTrue(iniFile.has(key: "display_errors"))
+        XCTAssertFalse(iniFile.has(key: "my_unknown_key"))
+    }
+
+    func testCanCheckKeyValue() throws {
+        let iniFile = PhpConfigurationFile.from(filePath: Self.phpIniFileUrl.path)!
+
+        XCTAssertNotNil(iniFile.get(for: "error_reporting"))
+        XCTAssert(iniFile.get(for: "error_reporting") == "E_ALL")
+
+        XCTAssertNotNil(iniFile.get(for: "display_errors"))
+        XCTAssert(iniFile.get(for: "display_errors") == "On")
+    }
+
     func testCanSwapConfigurationValue() throws {
         let destination = Utility.copyToTemporaryFile(resourceName: "php", fileExtension: "ini")!
 
diff --git a/phpmon/Common/PHP/PhpConfigurationFile.swift b/phpmon/Common/PHP/PhpConfigurationFile.swift
index 8642341..df7ec35 100644
--- a/phpmon/Common/PHP/PhpConfigurationFile.swift
+++ b/phpmon/Common/PHP/PhpConfigurationFile.swift
@@ -53,12 +53,19 @@ class PhpConfigurationFile: CreatedFromFile {
 
     // MARK: API
 
-    public func has(key: String) {
-        // TODO
+    public func has(key: String) -> Bool {
+        return self.content.contains { (_: String, section: Section) in
+            return section.keys.contains(key)
+        }
     }
 
-    public func value(for key: String) {
-        // TODO
+    public func get(for key: String) -> String? {
+        for (_, section) in self.content {
+            if section.keys.contains(key) {
+                return section[key]
+            }
+        }
+        return nil
     }
 
     public func replace(key: String, value: String) {