Question

如何在每个循环中为一个字符串连接？我在下面做的事情在没有循环的情况下可以正常工作，但有没有办法可以将循环放在那里而不会结束$body[{{body}}]并再次启动它？

$carrier = array (
    'SAS' => array('alias' => 'sas', 'name' => 'SAS'),
    'British Airways' => array('alias' => 'british_airways', 'name' => 'British Airways')
);

$body['{{body}}'] = '';

$body['{{body}}'] .= 'Line one'.

    foreach ($carrier as $key=>$value) {
        '<option value='.$value['alias'].'>'.$value['name'].'</option>'.;
    }

'Line two'.
'Line three'.
'Line four';

print_r($body);

Answer 1

试试这个 - 你必须连接foreach循环中生成的每一行。

$carrier = array (
    'SAS' => array('alias' => 'sas', 'name' => 'SAS'),
    'British Airways' => array('alias' => 'british_airways', 'name' => 'British Airways')
);

$body['{{body}}'] = 'Line one';

foreach ($carrier as $key=>$value) {
    $body['{{body}}'] .= '<option value=' . $value['alias'] . '>' . $value['name'] . '</option>';
}

$body['{{body}}'] .= 'Line two';
$body['{{body}}'] .= 'Line three';
$body['{{body}}'] .= 'Line four';

print_r($body);

Answer 2

$word = 'foo';
$result = "";
$char_buff = str_split($word);

foreach ($char_buff as $char){
  $result .= $char;
}

echo var_dump($result);

输出以下内容：

string(3) "foo"

How to combine strings inside foreach into single string PHP

PHP：Concat在foreach循环中的字符串

2 个答案: