比较两个不同的多维数组并突出显示更改

Question

我正在创建一个日志文件，该文件中我想同时显示旧条目和更新条目，但是与此同时，我也想突出显示新条目的更改，就像在stackoverflow中所做的那样，当我们编辑问题时，它们突出显示了编辑部分。

如您所见，描述有所不同，并且还有许多其他索引，我只展示其中一些。

我有两个不同的数组，如下所示：

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
        )

)

旧条目

  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, 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
        )

)

我对此进行了研究，发现了很多功能，从中可以尝试以下功能：

 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);

但这只是向我显示新条目，而没有任何比较。 希望我已经很好地解释了我的问题。

Answer 1

根据我的收集，您正在寻找一种突出显示文本差异以查看描述之间差异的方法。 从那里开始，我可能建议您将diff函数限制为b_discription因为其他属性似乎不在您需要的范围之内。 您是否希望business_logo ， business_name或mod_date更改？ 无论如何，如果可以将以下函数转换为字符串，则可以在对象中的所有属性上运行它们。

simplediff是一个出色的脚本，可以发现两个字符串之间的差异，包括：

• 存在于A中而不存在于B中（删除）
• 存在于B中而不存在于A中（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