我正在创建一个日志文件，我想在其中显示旧条目和更新的条目都在一起，但沿着这些我也想突出显示新条目的变化，就像在stackoverflow中做的那样，当我们编辑问题时，他们突出显示编辑的部分。
正如你所看到的，在描述中有不同，还有许多其他索引，我只是展示其中的一些。
我有两个不同的数组像这样:
新条目
Array
(
[0] => stdClass Object
(
[business_logo] => 31190_photo.jpg
[business] => Sms Factory Powered By Bds Technologies Pvt Ltd
[b_discription] => We smsfactory are world's leading SMS messaging provider offering remarakable and reliable SMS Text and Voice messaging globally through almost all-networks of mobile phones successfully. You may contact-us anytime for making any query. Our Services are very useful economically as well as eco-friendly,
[mod_date] => 1467736200
)
)
Array
(
[0] => stdClass Object
(
[business_logo] => 31190_photo.jpg
[business] => Sms Factory Powered By Bds Technologies Pvt Ltd
[b_discription] => We smsfactory are world's leading SMS messaging provider offering remarakable and reliable SMS Text and Voice messaging globally through almost all-networks of mobile phones successfully. You may contact-us anytime for making any query. Our Services are very useful economically as well as eco-friendly, which enables you to send simultaneous bulk sms to your targeted Customers, Regular-Customers, Buyers, Shoppers, Fans, Regular-shoppers, Clients, Clientele, Members, Managers, Supervisors, Fieldworkers, Graduates, Post graduates, Technicians, Public, Citizens, Mobile-Users, Viewers, Future-purchasers, Users, End-users, Students, Job-seekers, Enjoyers, Visitors, Frequent-visitors, Persons, Individuals, Frequenter, Obtainers, Receivers, Assignees, Recipients, Travelers, Tourists, Guys, Persons, Men and Women, Spectators, Technicians, Staff, Workers, Recruiters, Newcomers, Representatives, Dealers, Distributors, Followers, Shareholders, Investors, Bondholders, Shareowners, Financiers, Bankers, Participants, Associates, Assistants, Colleagues, Contributors, Helpers, Partakers, Party, Sharers, Supporters, Admirers, Devotees, Groupies, Enthusiasts and many more.
[mod_date] => 1467736200
)
)
我对此做了研究，发现了很多函数，我尝试了这个:
function arrayRecursiveDiff($aArray1, $aArray2) {
$aReturn = array();
foreach ($aArray1 as $mKey => $mValue) {
if (array_key_exists($mKey, $aArray2)) {
if (is_array($mValue)) {
$aRecursiveDiff = arrayRecursiveDiff($mValue, $aArray2[$mKey]);
if (count($aRecursiveDiff)) { $aReturn[$mKey] = $aRecursiveDiff; }
} else {
if ($mValue != $aArray2[$mKey]) {
$aReturn[$mKey] = $mValue;
}
}
} else {
$aReturn[$mKey] = $mValue;
}
}
return $aReturn;
}
$arr1 = arrayRecursiveDiff($newentry,$oldentry);
但是它只显示新的条目，没有任何比较。
根据我收集的信息，您正在寻找一种方法来突出显示文本中的差异，以查看描述之间的差异。从这里，我可以建议您将diff函数限制为仅b_discription，因为其他属性似乎不在您需要的范围内。您希望改变business_logo、business_name或mod_date吗?无论如何，如果对象中的所有属性可以转换为字符串，则可以运行下面的函数。
simplediff是一个很好的脚本，用于查找两个字符串之间的差异，包括:
- 存在于A而不存在于B(删除)
- 存在于B而不存在于A(插入)
<?php
/*
Paul's Simple Diff Algorithm v 0.1
(C) Paul Butler 2007 <http://www.paulbutler.org/>
May be used and distributed under the zlib/libpng license.
*/
function diff($old, $new){
$matrix = array();
$maxlen = 0;
foreach($old as $oindex => $ovalue){
$nkeys = array_keys($new, $ovalue);
foreach($nkeys as $nindex){
$matrix[$oindex][$nindex] = isset($matrix[$oindex - 1][$nindex - 1]) ?
$matrix[$oindex - 1][$nindex - 1] + 1 : 1;
if($matrix[$oindex][$nindex] > $maxlen){
$maxlen = $matrix[$oindex][$nindex];
$omax = $oindex + 1 - $maxlen;
$nmax = $nindex + 1 - $maxlen;
}
}
}
if($maxlen == 0) return array(array('d'=>$old, 'i'=>$new));
return array_merge(
diff(array_slice($old, 0, $omax), array_slice($new, 0, $nmax)),
array_slice($new, $nmax, $maxlen),
diff(array_slice($old, $omax + $maxlen), array_slice($new, $nmax + $maxlen)));
}
function htmlDiff($old, $new){
$ret = '';
$diff = diff(preg_split("/[s]+/", $old), preg_split("/[s]+/", $new));
foreach($diff as $k){
if(is_array($k))
$ret .= (!empty($k['d'])?"<del>".implode(' ',$k['d'])."</del> ":'').
(!empty($k['i'])?"<ins>".implode(' ',$k['i'])."</ins> ":'');
else $ret .= $k . ' ';
}
return $ret;
}
$old = "We smsfactory are world's leading SMS messaging provider offering remarakable and reliable SMS Text and Voice messaging globally through almost all-networks of mobile phones successfully. You may contact-us anytime for making any query. Our Services are very useful economically as well as eco-friendly";
$new = "We smsfactory are world's leading SMS messaging provider offering remarakable and reliable SMS Text and Voice messaging globally through almost all-networks of mobile phones successfully. You may contact-us anytime for making any query. Our Services are very useful economically as well as eco-friendly, which enables you to send simultaneous bulk sms to your targeted Customers, Regular-Customers, Buyers, Shoppers, Fans, Regular-shoppers, Clients, Clientele, Members, Managers, Supervisors, Fieldworkers, Graduates, Post graduates, Technicians, Public, Citizens, Mobile-Users, Viewers, Future-purchasers, Users, End-users, Students, Job-seekers, Enjoyers, Visitors, Frequent-visitors, Persons, Individuals, Frequenter, Obtainers, Receivers, Assignees, Recipients, Travelers, Tourists, Guys, Persons, Men and Women, Spectators, Technicians, Staff, Workers, Recruiters, Newcomers, Representatives, Dealers, Distributors, Followers, Shareholders, Investors, Bondholders, Shareowners, Financiers, Bankers, Participants, Associates, Assistants, Colleagues, Contributors, Helpers, Partakers, Party, Sharers, Supporters, Admirers, Devotees, Groupies, Enthusiasts and many more.";
?>
<!doctype html>
<head>
<style>
.container {
width: 50%;
margin-right: auto;
margin-left: auto;
font-family: sans-serif;
font-size: 12px;
line-height: 16px;
}
del {
background-color: #FFAB91;
color: ;
text-decoration: none;
}
ins {
background-color: #C5E1A5;
color: ;
text-decoration: none;
}
</style>
</head>
<body>
<div class="container">
<?php echo htmlDiff($old, $new); ?>
</div>
</body>
</head>
工作示例:https://3v4l.org/uU0dv