从字符串中提取ID

Question

我有这样的多个字符串：

13玻璃带数字化器(iPhone 5)，106个电池(iPad 4)，192 2GB DDR3 1067 MHz (内存)

我不知道如何简单地从字符串提取ID到数组？

Answer 1

你可以尝试：

$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

使用全，然后操作数组以摆脱[]

$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);
}

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);

此外，您还可以在一个字符串中获得它。

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