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system/Format/JSONFormatter.php

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+<?php
+
+/**
+ * This file is part of CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Format;
+
+use CodeIgniter\Format\Exceptions\FormatException;
+use Config\Format;
+
+/**
+ * JSON data formatter
+ */
+class JSONFormatter implements FormatterInterface
+{
+    /**
+     * Takes the given data and formats it.
+     *
+     * @param mixed $data
+     *
+     * @return bool|string (JSON string | false)
+     */
+    public function format($data)
+    {
+        $config = new Format();
+
+        $options = $config->formatterOptions['application/json'] ?? JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES;
+        $options = $options | JSON_PARTIAL_OUTPUT_ON_ERROR;
+
+        $options = ENVIRONMENT === 'production' ? $options : $options | JSON_PRETTY_PRINT;
+
+        $result = json_encode($data, $options, 512);
+
+        if (! in_array(json_last_error(), [JSON_ERROR_NONE, JSON_ERROR_RECURSION], true)) {
+            throw FormatException::forInvalidJSON(json_last_error_msg());
+        }
+
+        return $result;
+    }
+}