Create Where.php

Author: Erikvv

src/Ve/Where.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace Ve\Where;
+
+function where($objects, $propertyMap)
+{
+    $result = [];
+
+    foreach ($objects as $obj)
+    {
+        if (matches($obj, $propertyMap)) {
+            $result[] = $obj;
+        }
+    }
+
+    return $result;
+}
+
+function matches($object, $propertyMap)
+{
+    foreach ($propertyMap as $property => $value) {
+        if (is_array($value)) {
+            if (!matches(readProperty($object, $property), $value)) {
+                return false;
+            } else {
+                continue;
+            }
+        }
+        if (readProperty($object, $property) != $value) {
+            return false;
+        }
+    }
+
+    return true;
+}
+
+function readProperty($object, $property)
+{
+    if (is_object($object)) {
+        if (property_exists($object, $property)) {
+            return $object->$property;
+        } elseif (method_exists($object, $property)) {
+            return call_user_func([$object, $property]);
+        } else {
+            throw new \InvalidArgumentException(sprintf('Expected property or method %s in %s', $property, get_class($object)));
+        }
+    } elseif (is_array($object)) {
+        return $object[$property];
+    } else {
+        throw new \InvalidArgumentException('Expected object or array');
+    }
+}