It seems very simple. but very strong to use.
\nActually, I used to use it onto my project frequently.<\/p>\n
Thanks to_ https:\/\/github.com\/paulgb\/simplediff<\/p>\n
<\/p>\n
\r\nfunction diff($old, $new){\r\n\r\n $matrix = array();\r\n $maxlen = 0;\r\n\r\n foreach($old as $oindex => $ovalue){\r\n\r\n $nkeys = array_keys($new, $ovalue);\r\n foreach($nkeys as $nindex){\r\n\r\n $matrix[$oindex][$nindex] = isset($matrix[$oindex \u2013 1][$nindex \u2013 1]) ?\r\n $matrix[$oindex \u2013 1][$nindex \u2013 1] + 1 : 1;\r\n\r\n if($matrix[$oindex][$nindex] > $maxlen){\r\n $maxlen = $matrix[$oindex][$nindex];\r\n $omax = $oindex + 1 \u2013 $maxlen;\r\n $nmax = $nindex + 1 \u2013 $maxlen;\r\n }\r\n\r\n }\r\n\r\n }\r\n\r\n if($maxlen == 0) return array(array(\u2018d\u2019=>$old, \u2018i\u2019=>$new));\r\n \r\n return array_merge(\r\n diff(array_slice($old, 0, $omax), array_slice($new, 0, $nmax)),\r\n array_slice($new, $nmax, $maxlen),\r\n diff(array_slice($old, $omax + $maxlen), array_slice($new, $nmax + $maxlen)));\r\n\r\n}\r\n\r\nfunction htmlDiff($old, $new, $mode=0){\r\n $ret = \u201d;\r\n $diff = diff(preg_split(\u201c\/[s]+\/\u201d, $old), preg_split(\u201c\/[s]+\/\u201d, $new));\r\n \r\n foreach($diff as $k){\r\n\r\n if(is_array($k))\r\n if($mode == 0){ \/\/\ucd94\uac00\/\uc0ad\uc81c \ubaa8\ub450 \ud45c\uc2dc\r\n $ret .= (!empty($k[\u2018d\u2019])?\u201d<span class=\u2019deleted\u2019>\u201d.implode(\u2018 \u2018,$k[\u2018d\u2019]).\u201d<\/span> \u201c:\u201d).\r\n (!empty($k[\u2018i\u2019])?\u201d<span class=\u2019inserted\u2019>\u201d.implode(\u2018 \u2018,$k[\u2018i\u2019]).\u201d<\/span> \u201c:\u201d);\r\n }else if($mode == 1){ \/\/\uc0ad\uc81c \ub0b4\uc6a9\ub9cc \ud45c\uc2dc\r\n $ret .= (!empty($k[\u2018d\u2019])?\u201d<span class=\u2019deleted\u2019>\u201d.implode(\u2018 \u2018,$k[\u2018d\u2019]).\u201d<\/span> \u201c:\u201d);\r\n }else if($mode == 2){ \/\/\ucd94\uac00 \ub0b4\uc6a9\ub9cc \ud45c\uc2dc\r\n $ret .= (!empty($k[\u2018i\u2019])?\u201d<span class=\u2019inserted\u2019>\u201d.implode(\u2018 \u2018,$k[\u2018i\u2019]).\u201d<\/span> \u201c:\u201d);\r\n }else $ret .= $k . \u2018 \u2018;\r\n else $ret .= $k . \u2018 \u2018;\r\n\r\n }\r\n\r\n return $ret;\r\n}\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"It seems very simple. but very strong to use. Actually, I used to use it onto my project frequently. Thanks to_ https:\/\/github.com\/paulgb\/simplediff <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[348],"tags":[],"_links":{"self":[{"href":"https:\/\/www.itchefblog.com\/index.php?rest_route=\/wp\/v2\/posts\/535"}],"collection":[{"href":"https:\/\/www.itchefblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.itchefblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.itchefblog.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.itchefblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=535"}],"version-history":[{"count":3,"href":"https:\/\/www.itchefblog.com\/index.php?rest_route=\/wp\/v2\/posts\/535\/revisions"}],"predecessor-version":[{"id":677,"href":"https:\/\/www.itchefblog.com\/index.php?rest_route=\/wp\/v2\/posts\/535\/revisions\/677"}],"wp:attachment":[{"href":"https:\/\/www.itchefblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=535"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.itchefblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=535"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.itchefblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=535"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}