正则怎么取空格前面的字符窜？

Question

wy.&?=&.toy1 wy.&?=&.toy2 wy.&?=&.toy ......
wy.&?=&.toy1 wy.&?=&.toy2 wy.&?=&.toy ......
wy.&?=&.toy1 wy.&?=&.toy2 wy.&?=&.toy ......
wy.&?=&.toy1 wy.&?=&.toy2 wy.&?=&.toy ......我想按照空格去取前面的字符窜取出结果是 array(1=>array(wy.&?=&.toy1,wy.&?=&.toy2......),2=>array(.....))

Answer 1

用explode就可以了
explode(' ',$str)

Answer 2

$str = <<<EOD
wy.&?=&.toy1 wy.&?=&.toy2 wy.&?=&.toy
wy.&?=&.toy1 wy.&?=&.toy2 wy.&?=&.toy
wy.&?=&.toy1 wy.&?=&.toy2 wy.&?=&.toy
wy.&?=&.toy1 wy.&?=&.toy2 wy.&?=&.toy
EOD;$arr1 = explode("\n",$str);
foreach($arr1 as $arr){
    $arr2[] = explode(" ",$arr);
}
var_dump($arr2);

Answer 3

其实正则也跟上面差不多。而且效率没explode高。并不推荐，$str = <<<EOD
wy.&?=&.toy1 wy.&?=&.toy2 wy.&?=&.toy
wy.&?=&.toy1 wy.&?=&.toy2 wy.&?=&.toy
wy.&?=&.toy1 wy.&?=&.toy2 wy.&?=&.toy
wy.&?=&.toy1 wy.&?=&.toy2 wy.&?=&.toy
EOD;$arr1 = explode("\n",$str);
foreach($arr1 as $arr){
  $arr2[] = preg_split('/ /',$arr);
}

Answer 4

$str = "wy.&?=&.toy1 wy.&?=&.toy2 wy.&?=&.toy" ;
preg_match_all('/(.*?)\s/',$str,$data);
print_r($data);
测试是可以的

Answer 5

php 中有自带的分割函数。explode（'',$array）比正则要好的多。

Answer 6

$str = "wy.&?=&.toy1 wy.&?=&.toy2 wy.&?=&.toy ......
wy.&?=&.toy1 wy.&?=&.toy2 wy.&?=&.toy ......
wy.&?=&.toy1 wy.&?=&.toy2 wy.&?=&.toy ......
wy.&?=&.toy1 wy.&?=&.toy2 wy.&?=&.toy ......" ;
preg_match_all('/(.*?)\s/',$str,$data);
print_r($data);
//结果
Array
(
    [0] => Array
        (
            [0] => wy.&?=&.toy1 
            [1] => wy.&?=&.toy2 
            [2] => wy.&?=&.toy 
            [3] => ......
            [4] =>             [5] => wy.&?=&.toy1 
            [6] => wy.&?=&.toy2 
            [7] => wy.&?=&.toy 
            [8] => ......
            [9] =>             [10] => wy.&?=&.toy1 
            [11] => wy.&?=&.toy2 
            [12] => wy.&?=&.toy 
            [13] => ......
            [14] =>             [15] => wy.&?=&.toy1 
            [16] => wy.&?=&.toy2 
            [17] => wy.&?=&.toy 
        )    [1] => Array
        (
            [0] => wy.&?=&.toy1
            [1] => wy.&?=&.toy2
            [2] => wy.&?=&.toy
            [3] => ......
            [4] => 
            [5] => wy.&?=&.toy1
            [6] => wy.&?=&.toy2
            [7] => wy.&?=&.toy
            [8] => ......
            [9] => 
            [10] => wy.&?=&.toy1
            [11] => wy.&?=&.toy2
            [12] => wy.&?=&.toy
            [13] => ......
            [14] => 
            [15] => wy.&?=&.toy1
            [16] => wy.&?=&.toy2
            [17] => wy.&?=&.toy
        ))

Answer 7

多谢~  哈哈   还是用explode结合正则好了