diff --git a/run-tests.php b/run-tests.php
index 8cdaa03b20bd5..a32db44bf83f0 100755
--- a/run-tests.php
+++ b/run-tests.php
@@ -1575,15 +1575,19 @@ function run_test($php, $file, $env)
 
 	// Additional required extensions
 	if (array_key_exists('EXTENSIONS', $section_text)) {
-		$ext_dir=`$php -r 'echo ini_get("extension_dir");'`;
+		$ext_params = array();
+		settings2array($ini_overwrites, $ext_params);
+		settings2params($ext_params);
+		$ext_dir=`$php $pass_options $ext_params -d display_errors=0 -r "echo ini_get('extension_dir');"`;
 		$extensions = preg_split("/[\n\r]+/", trim($section_text['EXTENSIONS']));
-		$loaded = explode(",", `$php -n -r 'echo implode(",", get_loaded_extensions());'`);
+		$loaded = explode(",", `$php $pass_options $ext_params -d display_errors=0 -r "echo implode(',', get_loaded_extensions());"`);
+		$ext_prefix = substr(PHP_OS, 0, 3) === "WIN" ? "php_" : "";
 		foreach ($extensions as $req_ext) {
 			if (!in_array($req_ext, $loaded)) {
 				if ($req_ext == 'opcache') {
-					$ini_settings['zend_extension'][] = $ext_dir . DIRECTORY_SEPARATOR . $req_ext . '.' . PHP_SHLIB_SUFFIX;
+					$ini_settings['zend_extension'][] = $ext_dir . DIRECTORY_SEPARATOR . $ext_prefix . $req_ext . '.' . PHP_SHLIB_SUFFIX;
 				} else {
-					$ini_settings['extension'][] = $ext_dir . DIRECTORY_SEPARATOR . $req_ext . '.' . PHP_SHLIB_SUFFIX;
+					$ini_settings['extension'][] = $ext_dir . DIRECTORY_SEPARATOR . $ext_prefix . $req_ext . '.' . PHP_SHLIB_SUFFIX;
 				}
 			}
 		}
diff --git a/tests/run-test/bug75042-2.phpt b/tests/run-test/bug75042-2.phpt
new file mode 100644
index 0000000000000..c79eb4495f172
--- /dev/null
+++ b/tests/run-test/bug75042-2.phpt
@@ -0,0 +1,18 @@
+--TEST--
+phpt EXTENSIONS directive with static module
+--SKIPIF--
+<?php
+if(empty($_ENV['TEST_PHP_EXECUTABLE'])) {
+	die('skip TEST_PHP_EXECUTABLE not set');
+}
+$php = $_ENV['TEST_PHP_EXECUTABLE'];
+if (false === stripos(`$php -n -m`, 'spl')) {
+	die('skip spl is NOT built static');
+}
+--EXTENSIONS--
+SPL
+--FILE--
+<?php
+var_dump(extension_loaded('spl'));
+--EXPECT--
+bool(true)
\ No newline at end of file
diff --git a/tests/run-test/bug75042-3.phpt b/tests/run-test/bug75042-3.phpt
new file mode 100644
index 0000000000000..76ec2b5ff05d1
--- /dev/null
+++ b/tests/run-test/bug75042-3.phpt
@@ -0,0 +1,8 @@
+--TEST--
+phpt EXTENSIONS directive with nonexistent shared module
+--EXTENSIONS--
+nonexistentsharedmodule
+--FILE--
+<?php
+--EXPECTF--
+PHP Warning:  PHP Startup: Unable to load dynamic library '%snonexistentsharedmodule.%s' %A
\ No newline at end of file
diff --git a/tests/run-test/bug75042.phpt b/tests/run-test/bug75042.phpt
new file mode 100644
index 0000000000000..10a0f45040a0e
--- /dev/null
+++ b/tests/run-test/bug75042.phpt
@@ -0,0 +1,20 @@
+--TEST--
+phpt EXTENSIONS directive with shared module
+--SKIPIF--
+<?php
+if(empty($_ENV['TEST_PHP_EXECUTABLE'])) {
+	die('skip TEST_PHP_EXECUTABLE not set');
+}
+$php = $_ENV['TEST_PHP_EXECUTABLE'];
+if (false !== stripos(`$php -n -m`, 'openssl')) {
+	die('skip openssl is built static');
+}
+$ext_module = ini_get('extension_dir') . DIRECTORY_SEPARATOR . (substr(PHP_OS, 0, 3) === "WIN" ? "php_openssl." : "openssl.") . PHP_SHLIB_SUFFIX;
+if( !file_exists($ext_module) ) die('skip openssl shared extension not found');
+--EXTENSIONS--
+openssl
+--FILE--
+<?php
+var_dump(extension_loaded('openssl'));
+--EXPECT--
+bool(true)
\ No newline at end of file