php-将大字符串拆分为数组,但拆分点无法破坏标签

我编写了一个脚本,该脚本将的大块文本发送给Google进行翻译,但是有时,该文本(即html源代码)最终会在html标记中间分裂,并且Google会错误地返回代码.

我已经知道如何将字符串拆分为数组,但是在确保输出字符串不超过5000个字符且不会在标签上拆分的情况下,还有更好的方法吗？

更新：感谢您的回答,这是我最终在项目中使用的代码,并且效果很好

function handleTextHtmlSplit($text, $maxSize) {
    //our collection array
    $niceHtml[] = '';

    // Splits on tags, but also includes each tag as an item in the result
    $pieces = preg_split('/(<[^>]*>)/', $text, -1, PREG_SPLIT_DELIM_CAPTURE);

    //the current position of the index
    $currentPiece = 0;

    //start assembling a group until it gets to max size

    foreach ($pieces as $piece) {
        //make sure string length of this piece will not exceed max size when inserted
        if (strlen($niceHtml[$currentPiece] . $piece) > $maxSize) {
            //advance current piece
            //will put overflow into next group
            $currentPiece += 1;
            //create empty string as value for next piece in the index
            $niceHtml[$currentPiece] = '';
        }
        //insert piece into our master array
        $niceHtml[$currentPiece] .= $piece;
    }

    //return array of nicely handled html
    return $niceHtml;
}

解决方法:

注意：还没有机会进行测试(因此可能会有一个或两个小错误),但是它应该给您一个想法：

function get_groups_of_5000_or_less($input_string) {

    // Splits on tags, but also includes each tag as an item in the result
    $pieces = preg_split('/(<[^>]*>)/', $input_string,
        -1, PREG_SPLIT_DELIM_CAPTURE);

    $groups[] = '';
    $current_group = 0;

    while ($cur_piece = array_shift($pieces)) {
        $piecelen = strlen($cur_piece);

        if(strlen($groups[$current_group]) + $piecelen > 5000) {
            // Adding the next piece whole would go over the limit,
            // figure out what to do.
            if($cur_piece[0] == '<') {
                // Tag goes over the limit, just put it into a new group
                $groups[++$current_group] = $cur_piece;
            } else {
                // Non-tag goes over the limit, split it and put the
                // remainder back on the list of un-grabbed pieces
                $grab_amount = 5000 - $strlen($groups[$current_group];
                $groups[$current_group] .= substr($cur_piece, 0, $grab_amount);
                $groups[++$current_group] = '';
                array_unshift($pieces, substr($cur_piece, $grab_amount));
            }
        } else {
            // Adding this piece doesn't go over the limit, so just add it
            $groups[$current_group] .= $cur_piece;
        }
    }
    return $groups;
}

还要注意,这可以在常规单词的中间进行拆分-如果您不希望这样做,则可以修改以// //非标记开头的部分,以便为$grab_amount选择一个更好的值.我不费吹灰之力地进行编码,因为这仅是如何解决拆分标签的一个示例,而不是嵌入式解决方案.

标签：string-split,php
来源： https://codeday.me/bug/20191209/2097718.html