Question

我需要在《公共卫生法》中引入“ Java本”提示功能。如何做到这一点?

script type="text/javascript">
        function show_alert() {
            var msg = "No solution found.";
            alert(msg);
        }
</script>
<?php
//...
    $outputs = -1;
    if ($outputs == -1) {
        echo  <script type="text/javascript"> show_alert(); </script> ;
    } else {
        ?>
        <table width="100%">
            <tr>
                <td width="100%"> 
                    <div class="scrollbar" id="chart">
                        <img src="ganttchart.php">
                    </div>
                </td>
            </tr>
        </table>
    <?php
    }
?>

Answer 1

与此相呼应的是,在PHP中,该表显示:

<script type="text/javascript">
    function show_alert() {
    var msg = "No solution found";
    alert(msg);
    }
</script>

<?php
//...

$output = run_function();
if ($output == -1) {
   echo  <script type="text/javascript"> show_alert(); </script> ;
}
?>

Answer 2

In-line JavaScript needs to be inside <script> tags. Simply output those as well, in a valid place. Do note that you cannot affect the operation of the PHP code this way though.

Answer 3

use this

<script type="text/javascript">
         show_alert();
    </script>

so like this

$output = run_function();
if ($outputs == -1) {
?>
<script type="text/javascript">
             show_alert();
        </script>
<?php
}
?>

Answer 4

<?php
    $output = run_function();
    if ($outputs == -1) {
        echo "<script type= text/javascript >alert("No Solution Found");</script>"
    }
?>

Answer 5

我建议

    $msg = "My message";
    echo "<script type="text/javascript"> alert($msg); </script>";

你对大卫是正确的。

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