zoukankan      html  css  js  c++  java
  • PHP之string之wordwrap()函数使用

    wordwrap

    • (PHP 4 >= 4.0.2, PHP 5, PHP 7)
    • wordwrap — Wraps a string to a given number of characters
    • wordwrap — 打断字符串为指定数量的字串

    Description

    string wordwrap ( 
        string $str [, 
        int $width = 75 [, 
        string $break = "
    " [, 
        bool $cut = FALSE ]]] 
        )
    //Wraps a string to a given number of characters using a string break character.
    //使用字符串断点将字符串打断为指定数量的字串。
    

    Parameters

    str

    • The input string.
    • 输入字符串。

    width

    • The number of characters at which the string will be wrapped.
    • 列宽度。

    break

    • The line is broken using the optional break parameter.
    • 使用可选的 break 参数打断字符串。

    cut

    • If the cut is set to TRUE, the string is always wrapped at or before the specified width. So if you have a word that is larger than the given width, it is broken apart. (See second example). When FALSE the function does not split the word even if the width is smaller than the word width.
    • 如果 cut 设置为 TRUE,字符串总是在指定的 width 或者之前位置被打断。因此,如果有的单词宽度超过了给定的宽度,它将被分隔开来。(参见第二个范例)。 当它是 FALSE ,函数不会分割单词,哪怕 width 小于单词宽度。

    Return Values

    • Returns the given string wrapped at the specified length.
    • 返回打断后的字符串。

    Examples

    <?php
    /**
     * Created by PhpStorm.
     * User: zhangrongxiang
     * Date: 2018/3/8
     * Time: 下午9:27
     */
    
    $text    = "The quick brown fox jumped over the lazy dog.";
    $newtext = wordwrap( $text, 20, "
    " );
    //The quick brown fox
    //jumped over the lazy
    //dog.
    echo $newtext . PHP_EOL;
    
    $text    = "A very long woooooooooooord.";
    $newtext = wordwrap( $text, 8, "
    ", false );
    //A very
    //long
    //woooooooooooord.
    echo $newtext . PHP_EOL;
    $newtext = wordwrap( $text, 8, "
    ", true );
    //A very
    //long
    //wooooooo
    //ooooord.
    echo $newtext . PHP_EOL;
    
    $str = "hello world hello php";
    //hello-world-hello-php
    echo wordwrap( $str, 5, "-", false ) . PHP_EOL;
    //hello world hello php
    echo wordwrap( $str ) . PHP_EOL;
    //hello
    //world
    //hello
    //php
    echo wordwrap( $str, 3 ) . PHP_EOL;
    

    See

    All rights reserved

  • 相关阅读:
    如何判断retina,如何判断设备的比例
    说说移动前端中 viewport (视口)
    随机生成广告
    fullPage 全屏滚动【上下滚动】效果
    判断鼠标滚动方向
    低版本IE浏览器 input元素出现叉叉的情况
    关于IE7 默认有边框的解决方案
    embed 层级太高
    搜狐-新闻页 粗略整理-自我学习
    页面重构布局样式命名规则 —— 参考
  • 原文地址:https://www.cnblogs.com/zhangrxiang/p/8531009.html
Copyright © 2011-2022 走看看