update ...

Author: inhere

src/Collections/LiteCollection.php

@@ -60,6 +60,37 @@ public function replace(array $items)
         }
     }
 
+    /**
+     * @param callable $callback
+     * @return static
+     */
+    public function map(callable $callback)
+    {
+        $data = [];
+
+        foreach ($this as $key => $value) {
+            $data[$key] = $callback($value, $key);
+        }
+
+        return new static($data);
+    }
+
+    /**
+     * @param string $char
+     * @return string
+     */
+    public function implode($char = ',')
+    {
+        $string = '';
+
+        foreach ($this as $key => $value) {
+//            $string .= is_array($value) ? $this->implode($char, $value) : implode($char, $value);
+            $string .= implode($char, $value);
+        }
+
+        return $string;
+    }
+
     /**
      * {@inheritDoc}
      */

src/Collections/SimpleCollection.php

@@ -123,6 +123,37 @@ public function sets(array $data)
         return $this;
     }
 
+    /**
+     * @param callable $callback
+     * @return static
+     */
+    public function map(callable $callback)
+    {
+        $data = [];
+
+        foreach ($this->getIterator() as $key => $value) {
+            $data[$key] = $callback($value, $key);
+        }
+
+        return new static($data);
+    }
+
+    /**
+     * @param string $char
+     * @return string
+     */
+    public function implode($char = ',')
+    {
+        $string = '';
+
+        foreach ($this->getIterator() as $key => $value) {
+//            $string .= is_array($value) ? $this->implode($char, $value) : implode($char, $value);
+            $string .= implode($char, $value);
+        }
+
+        return $string;
+    }
+
     /**
      * Get all items in collection
      * @return array The collection's source data

src/functions.php

@@ -66,6 +66,13 @@ function env(string $name, $default = null)
     }
 }
 
+if (!function_exists('collect')) {
+    function collect(array $values)
+    {
+        return new \Inhere\Library\Collections\LiteCollection($values);
+    }
+}
+
 if (!function_exists('msleep')) {
     function msleep($ms)
     {