3,
// ignore case difference
'ignoreCase' => false,
// ignore whitespace difference
'ignoreWhitespace' => false,
];
// the renderer class options
$rendererOptions = [
// how detailed the rendered HTML in-line diff is? (none, line, word, char)
'detailLevel' => 'char',
// renderer language: eng, cht, chs, jpn, ...
// or an array which has the same keys with a language file
'language' => 'eng',
// show line numbers in HTML renderers
'lineNumbers' => true,
// show a separator between different diff hunks in HTML renderers
'separateBlock' => true,
// show the (table) header
'showHeader' => true,
// the frontend HTML could use CSS "white-space: pre;" to visualize consecutive whitespaces
// but if you want to visualize them in the backend with " ", you can set this to true
'spacesToNbsp' => false,
// HTML renderer tab width (negative = do not convert into spaces)
'tabSize' => 4,
// this option is currently only for the Combined renderer.
// it determines whether a replace-type block should be merged or not
// depending on the content changed ratio, which values between 0 and 1.
'mergeThreshold' => 0.8,
// this option is currently only for the Unified and the Context renderers.
// RendererConstant::CLI_COLOR_AUTO = colorize the output if possible (default)
// RendererConstant::CLI_COLOR_ENABLE = force to colorize the output
// RendererConstant::CLI_COLOR_DISABLE = force not to colorize the output
'cliColorization' => RendererConstant::CLI_COLOR_ENABLE ,
// this option is currently only for the Json renderer.
// internally, ops (tags) are all int type but this is not good for human reading.
// set this to "true" to convert them into string form before outputting.
'outputTagAsString' => false,
// this option is currently only for the Json renderer.
// it controls how the output JSON is formatted.
// see available options on https://www.php.net/manual/en/function.json-encode.php
'jsonEncodeFlags' => \JSON_UNESCAPED_SLASHES | \JSON_UNESCAPED_UNICODE,
// this option is currently effective when the "detailLevel" is "word"
// characters listed in this array can be used to make diff segments into a whole
// for example, making "good-looking" into "good-looking"
// this should bring better readability but set this to empty array if you do not want it
'wordGlues' => [' ', '-'],
// change this value to a string as the returned diff if the two input strings are identical
'resultForIdenticals' => null,
// extra HTML classes added to the DOM of the diff container
'wrapperClasses' => ['diff-wrapper table table-bordered'],
];
$jsonResult = DiffHelper::calculate($old, $new, 'Json'); // may store the JSON result in your database
$htmlRenderer = RendererFactory::make('SideBySide', $rendererOptions);
$result = $htmlRenderer->renderArray(json_decode($jsonResult, true));
?>