Question

我真的不知道正则表达式...... 所以我被卡住了......任何人都可以通过解释正则表达式来解决这个问题......

这是我的代码：

for i in points:
    if i[1] == 820:
        print(i)

输出：

$str = "id:521082299088|name:JOHNSON GREIG DENOIA|mounth:JAN17|amount:170027|admin:2500|billqty:1|metre:R1/900|usage:00010261-00010550|reffno:0BKP21851AF3EC2E0D4F56997EA19DFA|charge:170377|balace:1935";
$pregsplit = preg_split("/[\s|]+/",$string2);

我想要这样的输出，

Array
(
    [0] => id:521082299088
    [1] => name:JOHNSON
    [2] => GREIG
    [3] => DENOIA
    [4] => mounth:JAN17
    [5] => amount:170027
    [6] => admin:2500
    [7] => billqty:1
    [8] => metre:R1/900
    [9] => usage:00010261-00010550
    [10] => reffno:0BKP21851AF3EC2E0D4F56997EA19DFA
    [11] => charge:170377
    [12] => balance:1935
)

抱歉这个假问题......

Answer 1

1）使用具有特定正则表达式模式的preg_match_all函数的解决方案：

$str = "id:521082299088|name:JOHNSON GREIG DENOIA|mounth:JAN17|amount:170027|admin:2500|billqty:1|metre:R1/900|usage:00010261-00010550|reffno:0BKP21851AF3EC2E0D4F56997EA19DFA|charge:170377|balace:1935";

preg_match_all("/(\w+):([^|]+)/", $str, $matches, PREG_SET_ORDER);
$result = [];
foreach ($matches as $items) {
    $result[$items[1]] = $items[2];
}
// $items[1] contains a "parameter" name captured by the first capturing group (\w+)
// $items[2] contains a "parameter" value captured by the second capturing group ([^|]+)

print_r($result);

输出：

Array
(
    [id] => 521082299088
    [name] => JOHNSON GREIG DENOIA
    [mounth] => JAN17
    [amount] => 170027
    [admin] => 2500
    [billqty] => 1
    [metre] => R1/900
    [usage] => 00010261-00010550
    [reffno] => 0BKP21851AF3EC2E0D4F56997EA19DFA
    [charge] => 170377
    [balace] => 1935
)

(\w+) - 匹配所有字母数字字符，后跟:

([^|]+) - 匹配除分隔符|以外的所有字符

http://php.net/manual/en/function.preg-match-all.php

2）除了第一种方法 - 使用array_combine函数（组合来自两个捕获组的所有相应值）：

preg_match_all("/(\w+):([^|]+)/", $str, $matches);
$result = array_combine($matches[1], $matches[2]);
// will give the same result

3）第三种替代方法是使用explode()函数：

$result = [];
foreach (explode("|", $str) as $items) {
    $pair = explode(":", $items);
    $result[$pair[0]] = $pair[1];
}

Answer 2

如果您无法编写正则表达式。这是一个使用explode()方法的简单解决方案。explode()函数将字符串分解为数组。

<?php
$str = "id:521082299088|name:JOHNSON GREIG DENOIA|mounth:JAN17|amount:170027|admin:2500|billqty:1|metre:R1/900|usage:00010261-00010550|reffno:0BKP21851AF3EC2E0D4F56997EA19DFA|charge:170377|balace:1935";

$array = explode('|',$str);
foreach($array as $key=>$value){
 $data = explode(':',$value);
 $final[$data[0]] = $data[1];

}
print_r($final);

?>

<强>输出：

Array
(
    [id] => 521082299088
    [name] => JOHNSON GREIG DENOIA
    [mounth] => JAN17
    [amount] => 170027
    [admin] => 2500
    [billqty] => 1
    [metre] => R1/900
    [usage] => 00010261-00010550
    [reffno] => 0BKP21851AF3EC2E0D4F56997EA19DFA
    [charge] => 170377
    [balace] => 1935
)

要详细了解explode()阅读文档http://php.net/manual/en/function.explode.php

Answer 3

一种有趣的方式（仅当您的字符串不包含=或&时）：将管道转换为符号和冒号等号，然后将其解析为{{3}的URL查询}：

$str = "id:521082299088|name:JOHNSON GREIG DENOIA|mounth:JAN17|amount:170027|admin:2500|billqty:1|metre:R1/900|usage:00010261-00010550|reffno:0BKP21851AF3EC2E0D4F56997EA19DFA|charge:170377|balace:1935";

parse_str(strtr($str, ':|', '=&'), $result);

print_r($result);

parse_str

Answer 4

这种方法可以替代。

您可以使用PHP的explode()函数分隔字符串并从中创建数组。然后，您可以使用strpos()和substr()函数分隔'key:value'结构。

// input string
$str = "id:521082299088|name:JOHNSON GREIG DENOIA|mounth:JAN17|amount:170027|admin:2500|billqty:1|metre:R1/900|usage:00010261-00010550|reffno:0BKP21851AF3EC2E0D4F56997EA19DFA|charge:170377|balace:1935";

// make an array out of the string, split elements on each pipe character ('|')
$arr = explode('|', $str);

// create an output array to keep the results
$output = [];

// process the array
foreach ($arr as $item) {
    // get delimiter
    $separatorPos = strpos($item, ':');
    // take the key part (The part before the ':')
    $key = substr($item, 0, $separatorPos);
    // take the value part (The part after the ':')
    $value = substr($item, $separatorPos);
    // push it into the output array
    $output[$key] = $value;
}

// dump the output array
var_export($output);

输出数组的转储就像下面一样;

[
    'id'      => ':521082299088',
    'name'    => ':JOHNSON GREIG DENOIA',
    'mounth'  => ':JAN17',
    'amount'  => ':170027',
    'admin'   => ':2500',
    'billqty' => ':1',
    'metre'   => ':R1/900',
    'usage'   => ':00010261-00010550',
    'reffno'  => ':0BKP21851AF3EC2E0D4F56997EA19DFA',
    'charge'  => ':170377',
    'balace'  => ':1935',
]

REGEX PHP preg_split

4 个答案: