Question

PHP中的代码是什么：

$string = '123,456,789,102'  
$value = '564'

如何将$string拆分为一个数组，然后将数组中的每个值与$ value连接成二维数组，所以最终的结果是：

$result = (   
    (564,123),  
    (564, 456),  
    (564, 789),  
    (564, 102)              
)

所以$ result可以用于使用PDO在mysql中插入多行：

  $stmt = $this->pdo->prepare('INSERT INTO tbl_user (id, bought) VALUES ((?,?),

       (?,?),
       (?,?),
       (?,?),
       (?,?),

            )');

       $stmt->execute($result);

注意：id和buy列是varchar

Answer 1

尝试explode()和foreach()

$string = '123,456,789,102';
$value = '564';
$arr = explode(',', $string);
foreach($arr as $v) {
  $newarr[] = array($value,$v);
}
print_r($newarr); //Array ( [0] => Array ( [0] => 564 [1] => 123 ) [1] => Array ( [0] => 564 [1] => 456 ) [2] => Array ( [0] => 564 [1] => 789 ) [3] => Array ( [0] => 564 [1] => 102 ) )

Answer 2

$string = '123,456,789,102'  
$value = '564'
$string = explode(",",$string);
$result = array();
for ($i =0;$i<count($string);$i++)
{
$result[][0] = $value;
$result[][1] = $string[$i];
}
var_dump($result);

Answer 3

您可以使用explode分割string并进行一些循环以达到您想要的数组$result

$string = '123,456,789,102';
$value = '564';

$string = explode(",", $string);
$result = array();
foreach($string as $val) {
    array_push($result, array($value, $val) );
}

print_r($result);

Answer 4

//爆炸＆amp;将$string存储到数组中。数组包含$string作为字符串。

 $s_array = explode(",", $string);

//to remove spaces

$spaces=array(); //to store space
$others=array(); //to store characters
foreach($s_array as $word)
{
    if($word=='')
    {
        array_push($spaces,$word); //spaces are stored into space array
    }
    else
    {
        array_push($others,$word);  //string variables are stored into others array
    }
}

$count=count($others);

现在使用for循环。

for($i=0;$i<$count;$i++)
{
for($j=0;$j<$count;$j++)
{
$result[$i][$j] = $value;
$result[$i][$j+1] = $others[$i];
}
}

如果要将字符串数组转换为整数.... 做这样的事......

$integerarray = array_map('intval', array_filter($others, 'is_numeric'));
foreach($integerarray as $var) 
 {
array_push($result, array($value, $var) );
}

并进行编码。

PHP拆分逗号分隔字符串然后为拆分数组中的每个值添加相同的值？

4 个答案: