php实现将字符串按照指定距离进行分割的方法_php技巧

WBOY
Release: 2016-05-16 20:20:55
Original
949 people have browsed it

本文实例讲述了php实现将字符串按照指定距离进行分割的方法。分享给大家供大家参考。具体如下:

将一个字符串每隔三个字符添加一个逗号,例如把字符串1234567890转换为1,234,567,890,这种做法在金融领域非常常见

<&#63;php
/**
 * 每隔3个字符,用逗号进行分隔
 * @param string $str
 * @return string
 */
function splitStrWithComma ($str)
{
  $arr = array();
  $len = strlen($str);
  for ($i = $len - 1; $i >= 0;) {
    $new_str = "";
    for ($j = $i; $j > $i - 3 && $j >= 0; $j --) {
      $new_str .= $str[$j];
    }
    $arr[] = $new_str;
    $i = $j;
  }
  $string = implode(',', $arr);
  // 翻转字符串自己实现
  // $string = strrev($string);
  for ($i = 0, $j = strlen($string) - 1; $i <= $j; $i ++, $j --) {
    $tmp = $string[$i];
    $string[$i] = $string[$j];
    $string[$j] = $tmp;
  }
  return $string;
}
$str = "1234567890";
$new_str = splitStrWithComma($str);
echo $new_str . "\n";
Copy after login

希望本文所述对大家的php程序设计有所帮助。

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn:Public welfare online PHP training,Help PHP learners grow quickly!