拆分逗号分隔的字符串，然后为拆分数组中的每个值添加相同的值 - PHP Split comma separated string then add same value for each value in splitted array?

PHP Split comma separated string then add same value for each value in splitted array?

PHP代码是怎么做的:

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

如何将$string分割成一个数组，然后将数组中的每个值与$value连接成二维数组，因此最终结果:

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

所以$result可以用来在mysql中插入多行使用PDO:

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

注意:id和买的列都是varchar

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 ) )

//爆炸&将$string存储到数组中。数组包含$string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....像这样做…

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

并进行编码

$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);

您可以使用explode拆分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);