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msd2/phpBB3/phpbb/textformatter/data_access.php
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252
msd2/phpBB3/phpbb/textformatter/data_access.php
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<?php
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/**
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*
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* This file is part of the phpBB Forum Software package.
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*
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* @copyright (c) phpBB Limited <https://www.phpbb.com>
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* @license GNU General Public License, version 2 (GPL-2.0)
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*
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* For full copyright and license information, please see
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* the docs/CREDITS.txt file.
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*
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*/
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namespace phpbb\textformatter;
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/**
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* Data access layer that fetchs BBCodes, smilies and censored words from the database.
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* To be extended to include insert/update/delete operations.
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*
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* Also used to get templates.
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*/
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class data_access
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{
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/**
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* @var string Name of the BBCodes table
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*/
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protected $bbcodes_table;
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/**
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* @var \phpbb\db\driver\driver_interface
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*/
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protected $db;
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/**
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* @var string Name of the smilies table
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*/
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protected $smilies_table;
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/**
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* @var string Name of the styles table
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*/
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protected $styles_table;
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/**
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* @var string Path to the styles dir
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*/
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protected $styles_path;
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/**
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* @var string Name of the words table
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*/
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protected $words_table;
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/**
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* Constructor
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*
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* @param \phpbb\db\driver\driver_interface $db Database connection
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* @param string $bbcodes_table Name of the BBCodes table
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* @param string $smilies_table Name of the smilies table
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* @param string $styles_table Name of the styles table
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* @param string $words_table Name of the words table
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* @param string $styles_path Path to the styles dir
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*/
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public function __construct(\phpbb\db\driver\driver_interface $db, $bbcodes_table, $smilies_table, $styles_table, $words_table, $styles_path)
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{
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$this->db = $db;
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$this->bbcodes_table = $bbcodes_table;
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$this->smilies_table = $smilies_table;
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$this->styles_table = $styles_table;
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$this->words_table = $words_table;
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$this->styles_path = $styles_path;
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}
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/**
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* Return the list of custom BBCodes
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*
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* @return array
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*/
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public function get_bbcodes()
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{
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$sql = 'SELECT bbcode_match, bbcode_tpl FROM ' . $this->bbcodes_table;
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return $this->fetch_decoded_rowset($sql, ['bbcode_match']);
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}
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/**
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* Return the list of smilies
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*
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* @return array
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*/
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public function get_smilies()
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{
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// NOTE: smilies that are displayed on the posting page are processed first because they're
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// typically the most used smilies and it ends up producing a slightly more efficient
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// renderer
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$sql = 'SELECT code, emotion, smiley_url, smiley_width, smiley_height
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FROM ' . $this->smilies_table . '
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ORDER BY display_on_posting DESC';
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return $this->fetch_decoded_rowset($sql, ['code', 'emotion', 'smiley_url']);
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}
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/**
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* Return the list of installed styles
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*
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* @return array
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*/
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protected function get_styles()
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{
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$sql = 'SELECT style_id, style_path, style_parent_id, bbcode_bitfield FROM ' . $this->styles_table;
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return $this->fetch_decoded_rowset($sql);
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}
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/**
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* Return the bbcode.html template for every installed style
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*
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* @return array 2D array. style_id as keys, each element is an array with a "template" element that contains the style's bbcode.html and a "bbcodes" element that contains the name of each BBCode that is to be stylised
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*/
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public function get_styles_templates()
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{
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$templates = array();
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$bbcode_ids = array(
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'quote' => 0,
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'b' => 1,
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'i' => 2,
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'url' => 3,
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'img' => 4,
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'size' => 5,
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'color' => 6,
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'u' => 7,
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'code' => 8,
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'list' => 9,
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'*' => 9,
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'email' => 10,
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'flash' => 11,
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'attachment' => 12,
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);
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$styles = array();
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foreach ($this->get_styles() as $row)
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{
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$styles[$row['style_id']] = $row;
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}
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foreach ($styles as $style_id => $style)
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{
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$bbcodes = array();
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// Collect the name of the BBCodes whose bit is set in the style's bbcode_bitfield
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$template_bitfield = new \bitfield($style['bbcode_bitfield']);
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foreach ($bbcode_ids as $bbcode_name => $bit)
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{
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if ($template_bitfield->get($bit))
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{
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$bbcodes[] = $bbcode_name;
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}
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}
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$filename = $this->resolve_style_filename($styles, $style);
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if ($filename === false)
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{
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// Ignore this style, it will use the default templates
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continue;
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}
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$templates[$style_id] = array(
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'bbcodes' => $bbcodes,
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'template' => file_get_contents($filename),
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);
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}
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return $templates;
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}
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/**
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* Resolve inheritance for given style and return the path to their bbcode.html file
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*
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* @param array $styles Associative array of [style_id => style] containing all styles
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* @param array $style Style for which we resolve
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* @return string|bool Path to this style's bbcode.html, or FALSE
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*/
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protected function resolve_style_filename(array $styles, array $style)
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{
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// Look for a bbcode.html in this style's dir
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$filename = $this->styles_path . $style['style_path'] . '/template/bbcode.html';
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if (file_exists($filename))
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{
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return $filename;
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}
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// Resolve using this style's parent
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$parent_id = $style['style_parent_id'];
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if ($parent_id && !empty($styles[$parent_id]))
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{
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return $this->resolve_style_filename($styles, $styles[$parent_id]);
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}
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return false;
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}
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/**
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* Return the list of censored words
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*
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* @return array
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*/
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public function get_censored_words()
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{
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$sql = 'SELECT word, replacement FROM ' . $this->words_table;
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return $this->fetch_decoded_rowset($sql, ['word', 'replacement']);
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}
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/**
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* Decode HTML special chars in given rowset
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*
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* @param array $rows Original rowset
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* @param array $columns List of columns to decode
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* @return array Decoded rowset
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*/
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protected function decode_rowset(array $rows, array $columns)
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{
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foreach ($rows as &$row)
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{
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foreach ($columns as $column)
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{
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$row[$column] = htmlspecialchars_decode($row[$column]);
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}
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}
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return $rows;
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}
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/**
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* Fetch all rows for given query and decode plain text columns
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*
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* @param string $sql SELECT query
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* @param array $columns List of columns to decode
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* @return array
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*/
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protected function fetch_decoded_rowset($sql, array $columns = [])
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{
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$result = $this->db->sql_query($sql);
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$rows = $this->db->sql_fetchrowset($result);
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$this->db->sql_freeresult($result);
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return $this->decode_rowset($rows, $columns);
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}
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}
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