字符串转数组，字符串乱序
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2022-05-11 13:57:20
字符串转数组，字符串乱序
字符串转数组，字符串乱序
<?php
/**
* 字符串转数组，字符串乱序
* 个人练习题
* 文件编码和函数中的$charset必须一致，否则可能乱码
* 20110609 https://yourshell.info/
*
* $array = str2array($str, 'utf-8', 1);
* $new_array = arrayshuffle($array);
* print_r(join($new_array));
*/
set_time_limit(0);
// $str='我爱你url网址，你呢';
$str = 'url网址 < a href = "127.0.0.1/pe" title="摘要"/ >地方la</a >gfb6是否<body></html>';
// $str = file_get_contents('https://127.0.0.1/pe');
$array = str2array($str, 'utf-8', 1);
print_r(join($array));
$new_array = arrayshuffle($array);
echo "\r\n<br>";
print_r(join($new_array)) . "\r\n<br />";
function arrayshuffle($array){ # 必须和 str2array() 中的编码($charset)一致，否则shuffle() 将导致乱码
$key = array_keys($array);
$key2 = shuffle($key);
$n = count($array);
$new_key = '';
$new_str = '';
$new_array = array();
for($i = 0; $i < $n; $i++){
$new_key .= $key[$i] . ',';
$new_str = $array[$key[$i]];
$new_array[$key[$i]] = $array[$key[$i]];
}
return $new_array;
}
function str2array($str, $charset, $len = 1){ # 字符串转数组
$str = str_replace('< ', '<', $str);
$str = str_replace(' >', '>', $str);
$n = mb_strlen($str, $charset);
for($i = 0;$i < $n;$i += $len)
{
if(mb_substr($str, $i, $len, $charset) == '<')
{
$part1 = mb_substr($str, $i, $n, $charset); # 截取剩余的部分
preg_match("/(\<.*?\>)(.*?)(\>)/i", $part1, $matches); # 检测$part1中HTML非单一标签
if(isset($matches[0]) && strstr($matches[0], '<style') || isset($matches[0]) && strstr($matches[0], '<script')){
# 分析CSS和JS
$strarr[] = $matches[0];
$taglen = mb_strlen($matches[0], $charset); # $taglen是闭合标签的长度
}elseif(isset($matches[1])){ # 其它的非单一标签
$strarr[] = $matches[1];
$taglen = mb_strlen($matches[1], $charset);
}else{
preg_match("/(\<.*?\>)(.*?)/i", $part1, $matches); # 检测$part1中HTML单一标签
$strarr[] = $matches[1];
$taglen = mb_strlen($matches[1], $charset);
}
$i += $taglen; # $i的值
$i -= 1;
continue; # 跳出本次循环，进行下一次循环
}
$strarr[] = mb_substr($str, $i, $len, $charset);
}
return $strarr;
}
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