Redirect to a page/URL after alert button is pressed

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i have referred to this two questions call php page under Javascript function and Go to URL after OK button in alert is pressed. i want to redirect to my index.php after an

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6条回答

爱一瞬间的悲伤

2020-12-16 01:12

Like that, both of the sentences will be executed even before the page has finished loading.

Here is your error, you are missing a ';' Change:

       echo 'alert("review your answer")'; 
       echo 'window.location= "index.php"';

To:

       echo 'alert("review your answer");';
       echo 'window.location= "index.php";';

Then a suggestion: You really should trigger that logic after some event. So, for instance:

           document.getElementById("myBtn").onclick=function(){
                 alert("review your answer");
                 window.location= "index.php";
           };

Another suggestion, use jQuery

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情深已故

2020-12-16 01:22
window.location = mypage.href is a direct command for the browser to dump it's contents and start loading up some more. So for better clarification, here's what's happening in your PHP script:
```
echo '<script type="text/javascript">'; 
echo 'alert("review your answer");'; 
echo 'window.location = "index.php";';
echo '</script>';
```
1) prepare to accept a modification or addition to the current Javascript cache. 2) show the alert 3) dump everything in browser memory and get ready for some more (albeit an older method of loading a new URL (AND NOTICE that there are no "\n" (new line) indicators between the lines and is therefore causing some havoc in the JS decoder.

Let me suggest that you do this another way..
```
echo '<script type="text/javascript">\n'; 
echo 'alert("review your answer");\n'; 
echo 'document.location.href = "index.php";\n';
echo '</script>\n';
```
1) prepare to accept a modification or addition to the current Javascript cache. 2) show the alert 3) dump everything in browser memory and get ready for some more (in a better fashion than before) And WOW - it all works because the JS decoder can see that each command is anow a new line.

Best of luck!
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鱼传尺愫

2020-12-16 01:26

Working example in php.
First Alert then Redirect works....
Enjoy...

echo "<script>";
echo " alert('Import has successfully Done.');      
        window.location.href='".site_url('home')."';
      </script>";

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自闭症患者

2020-12-16 01:31
You're missing semi-colons after your javascript lines. Also, window.location should have .href or .replace etc to redirect - See this post for more information.
```
echo '<script type="text/javascript">'; 
echo 'alert("review your answer");'; 
echo 'window.location.href = "index.php";';
echo '</script>';
```
For clarity, try leaving PHP tags for this:
```
?>
<script type="text/javascript">
alert("review your answer");
window.location.href = "index.php";
</script>
<?php
```
NOTE: semi colons on seperate lines are optional, but encouraged - however as in the comments below, PHP won't break lines in the first example here but will in the second, so semi-colons are required in the first example.
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你的背包

2020-12-16 01:34

if (window.confirm('Really go to another page?'))
{
    alert('message');
    window.location = '/some/url';
}
else
{
    die();
}

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陌清茗

2020-12-16 01:34

<head>
<script>
    function myFunction() {
        var x;
        var r = confirm("Do you want to clear data?");
        if (r == true) {
            x = "Your Data is Cleared";
            window.location.href = "firstpage.php";
        }
        else {
            x = "You pressed Cancel!";
        }
        document.getElementById("demo").innerHTML = x;
    }
</script>
</head>
<body>
<button onclick="myFunction()">Retest</button>

<p id="demo"></p>
</body>
</html>

This will redirect to new php page.

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