我正在研究一个小的功能，该功能突出显示文本中的关键字。在我使用正则表达式将原来的文本替换为突出显示的文本（也可以使用）之前，但是最近我有时间重写此函数。我需要有关性能老虎钳或如何进行改进的一些帮助。任何有任何想法如何改进的人，我将不胜感激。
home_team away_team home_goals away_goals label home_team_goal_last_1 home_team_goal_last_3 home_team_goal_last_5 away_team_goal_last_1 away_team_goal_last_3 away_team_goal_last_5 DAY(match_date) MONTH(match_date) YEAR(match_date) WEEKDAY(match_date) PERCENTILE(home_goals) PERCENTILE(away_goals) PERCENTILE(home_team_goal_last_1) PERCENTILE(home_team_goal_last_3) PERCENTILE(home_team_goal_last_5) PERCENTILE(away_team_goal_last_1) PERCENTILE(away_team_goal_last_3) PERCENTILE(away_team_goal_last_5)
match_id
1 Arsenal Chelsea 2 0 1 NaN NaN NaN NaN NaN NaN 1 1 2014 2 0.666667 0.166667 NaN NaN NaN NaN NaN NaN
2 Arsenal Chelsea 1 0 1 2.0 NaN NaN 0.0 NaN NaN 2 1 2014 3 0.333333 0.166667 0.590909 NaN NaN 0.227273 NaN NaN
3 Arsenal Chelsea 0 3 2 1.0 NaN NaN 0.0 NaN NaN 3 1 2014 4 0.125000 0.958333 0.272727 NaN NaN 0.227273 NaN NaN
4 Chelsea Arsenal 1 1 X 3.0 1.000000 NaN 0.0 1.000000 NaN 4 1 2014 5 0.333333 0.500000 0.909091 0.333333 NaN 0.227273 0.500000 NaN
5 Chelsea Arsenal 2 0 1 1.0 1.333333 NaN 1.0 0.666667 NaN 5 1 2014 6 0.666667 0.166667 0.272727 0.555556 NaN 0.590909 0.277778 NaN
6 Chelsea Arsenal 2 1 1 2.0 2.000000 1.2 0.0 0.333333 0.8 6 1 2014 0 0.666667 0.500000 0.590909 0.722222 0.571429 0.227273 0.111111 0.214286
7 Arsenal Chelsea 2 2 X 1.0 0.666667 0.6 2.0 1.666667 1.6 7 1 2014 1 0.666667 0.791667 0.272727 0.111111 0.142857 0.909091 0.833333 0.785714
8 Arsenal Chelsea 0 1 2 2.0 1.000000 0.8 2.0 2.000000 2.0 8 1 2014 2 0.125000 0.500000 0.590909 0.333333 0.357143 0.909091 1.000000 1.000000
9 Arsenal Chelsea 1 3 2 0.0 1.000000 0.8 1.0 1.666667 1.6 9 1 2014 3 0.333333 0.958333 0.090909 0.333333 0.357143 0.590909 0.833333 0.785714
10 Chelsea Arsenal 3 1 1 3.0 2.000000 2.0 1.0 1.000000 0.8 10 1 2014 4 0.916667 0.500000 0.909091 0.722222 0.714286 0.590909 0.500000 0.214286
11 Chelsea Arsenal 2 2 X 3.0 2.333333 2.2 1.0 0.666667 1.0 11 1 2014 5 0.666667 0.791667 0.909091 0.888889 0.928571 0.590909 0.277778 0.428571
12 Chelsea Arsenal 4 1 1 2.0 2.666667 2.2 2.0 1.333333 1.2 12 1 2014 6 1.000000 0.500000 0.590909 1.000000 0.928571 0.909091 0.666667 0.571429
编辑：iconv是必需的，因为此功能将替换包含重音符号的文本。
编辑2：示例：function highlight($search, $subject, $htmlTag = 'mark')
{
if (empty($search) === true) {
return $subject;
}
$searchParts = explode(' ', str_replace("'", '', iconv('UTF-8', 'ASCII//TRANSLIT', $search)));
$subjectParts = explode(' ', str_replace("'", '', iconv('UTF-8', 'ASCII//TRANSLIT', $subject)));
$originalSubject = explode(' ', $subject);
$result = [];
foreach ($subjectParts as $row => $subjectPart) {
foreach ($searchParts as $searchPart) {
if (false !== $pos = stripos($subjectPart, $searchPart)) {
$result[] = mb_substr($originalSubject[$row], 0, $pos) . '<' . $htmlTag . '>' . mb_substr($originalSubject[$row], $pos, mb_strlen($searchPart)) . '</' . $htmlTag . '>' . mb_substr($originalSubject[$row], $pos + mb_strlen($searchPart));
continue 2;
}
}
$result[] = $originalSubject[$row];
}
return implode(' ', $result);
}
结果：“Satelitnýprijímač，Amiko HD815 5”
答案 0 :(得分：1)
这就是我要做的：
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div data-blah="asdf" style="border: 1px solid red;"></div>
<div data-blah="qwert" style="border: 1px solid green;"></div>