Question

我有这样的多个字符串：

[13]带数字化仪的玻璃（iPhone 5），[106]电池（iPad 4），[192] 2GB DDR3 1067 MHz（内存）

我不知道如何从字符串到数组中简单地提取ID？

Answer 1

您可以尝试：

$input  = '[13] Glass with digitizer (iPhone 5), [106] Battery (iPad 4), [192] 2GB DDR3 1067 MHz (Memory)';
preg_match_all('/\[(\d+)\]/', $input, $matches);
$output = array_map('intval', $matches[1]);

输出：

array (size=3)
  0 => int 13
  1 => int 106
  2 => int 192

Answer 2

使用preg_match_all然后操纵数组以摆脱[]

$string = "[13] Glass with digitizer (iPhone 5), [106] Battery (iPad 4), [192] 2GB DDR3 1067 MHz (Memory)";
preg_match_all("/\[[0-9]*\]/",
    $string,
    $out);
array_walk_recursive($out[0], 'cleanSquareBrackets');
print_r($out);

function cleanSquareBrackets(&$element) {
    $element = str_replace(array("[", "]"), "", $element);
}

<强>输出：

Array ( [0] => Array ( [0] => 13 [1] => 106 [2] => 192 ) )

Answer 3

$str = "[13] Glass with digitizer (iPhone 5), [106] Battery (iPad 4), [192] 2GB DDR3 1067 MHz (Memory)";
preg_match_all('!\[\d+\]!', $str, $matches);
print_r($matches);

另外，你可以用一个字符串

来获取它

$numbers = implode(',', $matches[0]);

从字符串中提取ID

3 个答案: