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Compare dos matrices multidimensionales diferentes y resalte los cambios

Por lo que deduje, está buscando una forma de resaltar las diferencias en el texto para ver las diferencias entre las descripciones. A partir de ahí, te sugiero que limites la función diff a solo b_discription ya que los otros atributos no parecen estar dentro del alcance de lo que necesita. ¿Esperas business_logo , business_name o mod_date ¿Ser cambiado? Independientemente, la siguiente función se puede ejecutar sobre todos los atributos de su objeto si se pueden convertir en una cadena.

simplediff es un excelente script que encuentra la diferencia entre dos cadenas, incluyendo:

  • Existe en A y no en B (Supresión)
  • Existe en B y no en A (Inserción)
<?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>

Ejemplo práctico:https://3v4l.org/uU0dv