patch #3038312 [export] JSON export

ChangeLog

@@ -102,6 +102,8 @@ $Id$
 - [interface] Fixed rendering of error/notice/info titles background.
 - patch #3038293 [doc] Language and grammar fixes,
   thanks to Isaac Bennetch - ibennetch
+- patch #3038312 [export] JSON export, 
+  thanks to Hauke Henningsen - blubberkeks152
 
 3.3.6.0 (not yet released)
 - bug #3033063 [core] Navi gets wrong db name

libraries/export/json.php

@@ -0,0 +1,183 @@
+<?php
+/**
+ * Set of functions used to build dumps of tables as JSON
+ *
+ */
+if (! defined('PHPMYADMIN')) {
+    exit;
+}
+
+/**
+ *
+ */
+if (isset($plugin_list)) {
+    $plugin_list['json'] = array(
+        'text'          => 'JSON',
+        'extension'     => 'php',
+        'mime_type'     => 'text/plain',
+        'options'       => array(
+            array(
+                'type' => 'hidden',
+                'name' => 'data',
+            ),
+        ),
+        'options_text'  => 'strOptions',
+    );
+} else {
+
+/**
+ * Set of functions used to build exports of tables
+ */
+
+/**
+ * Outputs comment
+ *
+ * @param   string      Text of comment
+ *
+ * @return  bool        Whether it suceeded
+ */
+function PMA_exportComment($text)
+{
+    PMA_exportOutputHandler('/* ' . $text . ' */' . $GLOBALS['crlf']);
+    return true;
+}
+
+/**
+ * Outputs export footer
+ *
+ * @return  bool        Whether it suceeded
+ *
+ * @access  public
+ */
+function PMA_exportFooter()
+{
+    return true;
+}
+
+/**
+ * Outputs export header
+ *
+ * @return  bool        Whether it suceeded
+ *
+ * @access  public
+ */
+function PMA_exportHeader()
+{
+    PMA_exportOutputHandler(
+        '/**' . $GLOBALS['crlf']
+        . ' Export to JSON plugin for PHPMyAdmin' . $GLOBALS['crlf']
+        . ' @version 0.1' . $GLOBALS['crlf']
+        . ' */' . $GLOBALS['crlf'] . $GLOBALS['crlf']
+    );
+    return true;
+}
+
+/**
+ * Outputs database header
+ *
+ * @param   string      Database name
+ *
+ * @return  bool        Whether it suceeded
+ *
+ * @access  public
+ */
+function PMA_exportDBHeader($db)
+{
+    PMA_exportOutputHandler('/* Database \'' . $db . '\' */ ' . $GLOBALS['crlf'] );
+    return true;
+}
+
+/**
+ * Outputs database footer
+ *
+ * @param   string      Database name
+ *
+ * @return  bool        Whether it suceeded
+ *
+ * @access  public
+ */
+function PMA_exportDBFooter($db)
+{
+    return true;
+}
+
+/**
+ * Outputs create database database
+ *
+ * @param   string      Database name
+ *
+ * @return  bool        Whether it suceeded
+ *
+ * @access  public
+ */
+function PMA_exportDBCreate($db)
+{
+    return true;
+}
+
+/**
+ * Outputs the content of a table in YAML format
+ *
+ * @param   string      the database name
+ * @param   string      the table name
+ * @param   string      the end of line sequence
+ * @param   string      the url to go back in case of error
+ * @param   string      SQL query for obtaining data
+ *
+ * @return  bool        Whether it suceeded
+ *
+ * @access  public
+ */
+function PMA_exportData($db, $table, $crlf, $error_url, $sql_query)
+{
+    $result      = PMA_DBI_query($sql_query, null, PMA_DBI_QUERY_UNBUFFERED);
+
+    $columns_cnt = PMA_DBI_num_fields($result);
+    for ($i = 0; $i < $columns_cnt; $i++) {
+        $columns[$i] = stripslashes(PMA_DBI_field_name($result, $i));
+    }
+    unset($i);
+
+    $buffer = '';
+    $record_cnt = 0;
+    while ($record = PMA_DBI_fetch_row($result)) {
+
+        $record_cnt++;
+
+        // Output table name as comment if this is the first record of the table
+        if ($record_cnt == 1) {
+            $buffer .= '/* ' . $db . '.' . $table . ' */' . $crlf . $crlf;
+            $buffer .= '[{';
+        } else {
+            $buffer .= ', {';
+        }
+
+        for ($i = 0; $i < $columns_cnt; $i++) {
+
+            $isLastLine = ($i + 1 >= $columns_cnt);
+
+            $column = $columns[$i];
+
+            if (is_null($record[$i])) {
+                $buffer .= '"' . $column . '": null' . (! $isLastLine ? ',' : '');
+            } elseif (is_numeric($record[$i])) {
+                $buffer .= '"' . $column . '": ' . $record[$i] . (! $isLastLine ? ',' : '');
+            } else {
+                $buffer .= '"' . $column . '": "' . addslashes($record[$i]) . '"' . (! $isLastLine ? ',' : '');
+            }
+        }
+
+        $buffer .= '}';
+    }
+
+    $buffer .=  ']';
+    if (! PMA_exportOutputHandler($buffer)) {
+        return FALSE;
+    }
+
+    PMA_DBI_free_result($result);
+
+    return true;
+}
+
+}