[英]Smarter word-wrap in PHP for long words?
I'm looking for a way to make word-wrap in PHP a bit smarter. 我正在寻找一种方法让PHP中的自动换行更智能一点。 So it doesn't pre-break long words leaving any prior small words alone on one line.
因此,它不会预先打破长字,只留下任何先前的小字在一行上。
Let's say I have this (the real text is always completely dynamic, this is just to show): 假设我有这个(真正的文本总是完全动态的,这只是为了显示):
wordwrap('hello! heeeeeeeeeeeeeeereisaverylongword', 25, '<br />', true);
This outputs: 这输出:
hello!
你好!
heeeeeeeeeeeeeeereisaveryheeeeeeeeeeeeeeereisavery
longword长字
See, it leaves the small word alone on the first line. 看,它在第一行留下了单词。 How can I get it to ouput something more like this:
我怎样才能让它输出更像这样的东西:
hello!
你好! heeeeeeeeeeee
heeeeeeeeeeee
eeereisaverylongwordeeereisaverylongword
So it utilizes any available space on each line. 因此它利用每条线上的任何可用空间。 I have tried several custom functions, but none have been effective (or they had some drawbacks).
我已经尝试了几个自定义函数,但没有一个是有效的(或者它们有一些缺点)。
I've had a go at the custom function for this smart wordwrap: 我已经开始使用这个智能文字包装的自定义功能了:
function smart_wordwrap($string, $width = 75, $break = "\n") {
// split on problem words over the line length
$pattern = sprintf('/([^ ]{%d,})/', $width);
$output = '';
$words = preg_split($pattern, $string, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);
foreach ($words as $word) {
if (false !== strpos($word, ' ')) {
// normal behaviour, rebuild the string
$output .= $word;
} else {
// work out how many characters would be on the current line
$wrapped = explode($break, wordwrap($output, $width, $break));
$count = $width - (strlen(end($wrapped)) % $width);
// fill the current line and add a break
$output .= substr($word, 0, $count) . $break;
// wrap any remaining characters from the problem word
$output .= wordwrap(substr($word, $count), $width, $break, true);
}
}
// wrap the final output
return wordwrap($output, $width, $break);
}
$string = 'hello! too long here too long here too heeeeeeeeeeeeeereisaverylongword but these words are shorterrrrrrrrrrrrrrrrrrrr';
echo smart_wordwrap($string, 11) . "\n";
EDIT : Spotted a couple of caveats. 编辑 :发现了一些警告。 One major caveat with this (and also with the native function) is the lack of multibyte support.
对此(以及本机功能)的一个主要警告是缺少多字节支持。
How about 怎么样
$string = "hello! heeeeeeeeeeeeeeereisaverylongword";
$break = 25;
echo implode(PHP_EOL, str_split($string, $break));
Which outputs 哪个输出
hello! heeeeeeeeeeeeeeere
isaverylongword
str_split() converts the string to an array of $break size chunks. str_split()将字符串转换为$ break size块的数组。
implode() joins the array back together as a string using the glue which in this case is an end of line marker (PHP_EOL) although it could as easily be a ' <br/>
' implode()使用胶水将数组作为字符串连接在一起,在这种情况下,胶水是行尾标记(PHP_EOL),尽管它可以很容易地成为'
<br/>
'
This is also a solution (for browsers etc.): 这也是一个解决方案(对于浏览器等):
$string = 'hello! heeeeeeeeeeeeeeeeeeeeeereisaverylongword';
echo preg_replace('/([^\s]{20})(?=[^\s])/', '$1'.'<wbr>', $string);
It puts a <wbr>
at words with 20 or more characters 它将
<wbr>
放在包含20个或更多字符的单词上
<wbr>
means "word break opportunity" so it only breaks if it has to (dictated by width of element/browser/viewer/other). <wbr>
表示“分词机会”,因此只有在必须时才会中断(由元素/浏览器/查看器/其他的宽度决定)。 It's invisible otherwise. 否则它是看不见的。
Good for fluid/responsive layout where there is no fixed width. 适用于没有固定宽度的流畅/响应式布局。 And does not wrap odd like php's wordwrap
并不像php的wordwrap那样包裹奇怪
You can use CSS to accomplish this. 您可以使用CSS来完成此任务。
word-wrap: break-word;
That will break the word for you. 那会打破你的话。 Here is a link to see it in action:
这是一个链接,可以看到它的实际效果:
http://www.css3.info/preview/word-wrap/ http://www.css3.info/preview/word-wrap/
This should do the trick... 这应该是诀窍......
$word = "hello!" . wordwrap('heeeeeeeeeeeeeeereisaverylongword', 25, '<br />', true);
echo $word;
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