php的字符串用法小结
2018-09-21 00:02
1 求长度，最基本的
$text = sunny day;
$count = strlen($text); // $count = 9
2 字符串截取
截取前多少个字符
$article = BREAKING NEWS: In ultimate irony, man bites dog.; $summary = substr_replace($article, ..., 40);
3 算单词数
$article = BREAKING NEWS: In ultimate irony, man bites dog.; $wordCount = str_word_count($article);
// $wordCount = 8
4 将字符串变成HTML的连接
$url = W.J. Gilmore, LLC (//
$url = preg_replace(/
5 去除字符中的HTML字符串
$text = strip_tags($input,
);
6 nl2br:
$comment = nl2br($comment);
变成带HTML格式
7 Wordwrap
限制每行字数
$speech = Four score and seven years ago our fathers brought forth, upon this continent, a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal.;
echo wordwrap($speech, 30);
输出：
Four score and seven years ago our fathers brought forth, upon this continent, a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal.