Merge pull request #22 from mickadoo/bugfix/preg-replace-with-array-replacements

Handle validation when array of patterns is passed in

Author: jasny

src/PcreExtension.php

@@ -59,11 +59,15 @@ public function getFilters()
      */
     protected function assertNoEval($pattern)
     {
-        $pos = strrpos($pattern, $pattern[0]);
-        $modifiers = substr($pattern, $pos + 1);
+        $patterns = (array)$pattern;
 
-        if (strpos($modifiers, 'e') !== false) {
-            throw new RuntimeError("Using the eval modifier for regular expressions is not allowed");
+        foreach ($patterns as $pattern) {
+            $pos       = strrpos($pattern, $pattern[0]);
+            $modifiers = substr($pattern, $pos + 1);
+
+            if (strpos($modifiers, 'e') !== false) {
+                throw new RuntimeError("Using the eval modifier for regular expressions is not allowed");
+            }
         }
     }
 

tests/PcreExtensionTest.php

@@ -116,6 +116,14 @@ public function testReplaceWithArray()
         );
     }
 
+    public function testReplaceWithArrayOfPatterns()
+    {
+        $this->assertRender(
+            '0000AAAA',
+            "{{ '1234ABCD'|preg_replace(['/\\\\d/','/[A-Z]/'],['0', 'A']) }}"
+        );
+    }
+
     public function testReplaceAssertNoEval()
     {
         $this->expectException(TwigRuntimeError::class);