PHP：意外 'StringLiteral'。预期的 '，'

Question

我在 VS 代码 Unexpected 'StringLiteral'. Expected ',' 中收到此错误通知，代码如下 PHP。请帮我理解它有什么问题。我在以 Click to..

开头的行中看到此错误

while ($dbh->next_record()) {
    $tracker_info = json_decode($dbh->Record['tracker_info'], TRUE);
    inform_sl_operations("PO$dbh->Record['po_number'] needs Follow Up. Due: $dbh->Record['alert'] \n" 
        . " Click to <a href="'search_results.php?po_number=$dbh->Record['po_number']'">view order</a>,"
        . " service@pmm.com", "PO $dbh->Record['po_number'] needs Follow Up");
}

Answer 1

您需要转义 <a>

的 href 属性中的双引号

"<a href=\".......\">"

Answer 2

在引号内使用 "，例如：

$string = "href="example.com"";

是错误的，需要转义，如：

$string = "href=\"example.com\"";

另一个可能的错误，不要这样做：

$string = "$dbh->Record['po_number']";

存储在变量中然后使用，例如：

$po_number = $dbh->Record['po_number'];
$string = " ... $po_number ... ";

试试这样的东西：

while ($dbh->next_record()) {
    $tracker_info = json_decode($dbh->Record['tracker_info'], TRUE);

    $num = $dbh->Record['po_number'];
    $alert = $dbh->Record['alert'];

    inform_sl_operations("PO $num needs Follow Up. Due: $alert \n" 
        . " Click to <a href=\"search_results.php?po_number=$num\">view order</a>,"
        . " service@pmm.com", "PO $num needs Follow Up");
}

PHP：意外 'StringLiteral'。预期的 '，'

PHP: Unexpected 'StringLiteral'. Expected ','

php

backend

visual-studio-code