如何在PHP中使用带括号的单引号和双引号？

Question

我在php中使用带括号的单引号和双引号时遇到问题

$nestedData[] = '<a href="JavaScript:newPopup('loghistory.php?logid='.$row['user_id'].'')"> History('.$countqry.')</a>';

Answer 1

You need to escape the quotes or concat the strings:

$nestedData[] = '<a href="JavaScript:newPopup('loghistory.php?logid='.$row['user_id'].'')"> History('.$countqry.')</a>';
                                              ^ here your string ends

You can change to:

$nestedData[] = '<a href="JavaScript:newPopup(\'loghistory.php?logid='.$row['user_id'].'\')"> History('.$countqry.')</a>';

Or another option:

$nestedData[] = '<a href="JavaScript:newPopup('. "'loghistory.php?logid='" .$row['user_id']. "'" . ')"> History('. $countqry .')</a>';

Answer 2

您可以使用\\转义单引号和双引号，如下所示：

'You\'re'

Answer 3

$nestedData[] = '<a href="JavaScript:newPopup('loghistory.php?logid='.$row['user_id'].'')"> History('.$countqry.')</a>';

试试下面的代码：

<a href="JavaScript:newPopup("loghistory.php?logid='.$row['user_id'].'')"> History('.$countqry.')</a>

Answer 4

If you wish to output a single tick from within a litteral string then you will need to escape that single quote:

$a = 'Graeme\'s example';
echo $a;

Will output:

Graeme's example

Answer 5

$nestedData[] = "<a href=\"JavaScript:newPopup('loghistory.php?logid='".$row['user_id']."')"."\"> History('".$countqry."')</a>";

Escape the quotes with \\

this should do the trick

Answer 6

$nestedData[] = '<a href="JavaScript:newPopup('".loghistory.php?logid='".$row['user_id']."'."')"> History("'.$countqry.'")</a>';