PHP：拆分长字符串而不会断词

Question

我正在寻找一些类似的东西

str_split_whole_word($longString, x)

其中$longString是句子的集合，并且x是每行的字符长度。它可能会很长，我想将其基本上以数组的形式分成多行。

例如

$longString = 'I like apple. You like oranges. We like fruit. I like meat, also.';
$lines = str_split_whole_word($longString, x);

$lines = Array(
    [0] = 'I like apple. You'
    [1] = 'like oranges. We'
    [2] = and so on...
)

Answer 1

这段代码避免打断单词，您不会使用wordwrap（）来获得它。

最大长度使用定义$maxLineLength。我已经做过一些测试，并且工作正常。

$longString = 'I like apple. You like oranges. We like fruit. I like meat, also.';

$words = explode(' ', $longString);

$maxLineLength = 18;

$currentLength = 0;
$index = 0;

foreach ($words as $word) {
    // +1 because the word will receive back the space in the end that it loses in explode()
    $wordLength = strlen($word) + 1;

    if (($currentLength + $wordLength) <= $maxLineLength) {
        $output[$index] .= $word . ' ';
        $currentLength += $wordLength;
    } else {
        $index += 1;
        $currentLength = $wordLength;
        $output[$index] = $word;
    }
}