need to call my php script from javascript

[thehubclick]

<script type="text/javascript">
 function checker1()
 {
 (tboxinp1.value==000)
 
 {
 alert("error3")
 }
 
 {
 // call php script from javascript
 ??? <?php
 
 not looking to use alert
 
 here is part of the php script
 to call
 }
 
 
 <?php

/// can I put a function to call this. This php script is taken from my sumbit button. I want to check if condition mets before the submit sends the data

 

 

 $t = $_GET["email"];
 
 
 echo '<script>checker1()</script>';
 
 
 if ($t == 1) {
 
 
 
 // heres submit i want to call from javascript 
 if(isset($_POST['textdata']))

 

 i dont know how to approach this javascript call. Thanks if you can help.

What i mean is the <?php script runs when i click submit i want to catch if data was not entered before it submits, if it does not i like the submit to cancel.

 

The php script as follows when submit button is clicked

 

 

<?php
 $t = $_GET["email"];
 
 
 echo '<script>checker1()</script>';
 
 
 if ($t == 1) {

 
 if(isset($_POST['textdata']))
 {
 // return false;
 session_start();
 $cm_name = $_GET["name"];
 
 // Check if a text file exists.
 // If not create one and initialize it to zero.
 if (!file_exists($cm_name)) {
 - $f = fopen($cm_name, "w");
 - fwrite($f,"0");
 - fclose($f);
 }
 
 // Read the current value of our counter file
 $f = fopen($cm_name,"r");
 $cmVal = fread($f, filesize($cm_name));
 fclose($f);
 
 // Has visitor been counted in this session?
 // If not, increase counter value by one
 if(!isset($_SESSION['hasVisited'])){
 - $_SESSION['hasVisited']="yes";
 - $cmVal++;
 - $f = fopen($cm_name, "w");
 - fwrite($f, $cmVal);
 - fclose($f);
 
 
 
  echo "Have a good day!";
 }
 
 echo '<script>showname()</script>';
 
 // $data=$_POST['textdata'];
 // $fp = fopen('data1.txt', 'a');
 // fwrite($fp, $data);
 // fclose($fp);
 }
 
 
 //echo "Have a good day!";
 }
 // echo '...';
 
 ?>d

Edited December 1, 2019 by thehubclick
missed something

[gw1500se]

First please use the code icon (<>) to embed it in a post and choose the correct code format. It makes your code much easier to read. Second, there are several ways to accomplish what you want. Probably the most common way is to include the javascript in the PHP page you want executed. Run the javascript and return true or false then test that in the PHP code to determine if the data meets the requirements to run the script. If not then output an error or something, otherwise run the code. If you really want to execute a PHP script from javascript then you need to use Ajax. Just search for "PHP Ajax" and you will find plenty of references with examples.

[thehubclick]

Sorry

 

Not sure how to

Use <> my code inside

(<

<script type="text/javascript">
 function sam_click()
 {
 var x="<?php ex(); ?>";
 alert(x);
 return false;
 }
 </script>

>)

I cant find the edit to fix my code. So did this test. Ty

 

Edited December 1, 2019 by thehubclick

[thehubclick]

1 hour ago, gw1500se said:

First please use the code icon (<>) to embed it in a post and choose the correct code format. It makes your code much easier to read. Second, there are several ways to accomplish what you want. Probably the most common way is to include the javascript in the PHP page you want executed. Run the javascript and return true or false then test that in the PHP code to determine if the data meets the requirements to run the script. If not then output an error or something, otherwise run the code. If you really want to execute a PHP script from javascript then you need to use Ajax. Just search for "PHP Ajax" and you will find plenty of references with examples.

Ok ty. I cant get my test <>

To work how do i learn on this forum how to embed

Is it (<  my code.  >)

 

Let me know because in my test  i did <   my code  >

But it didnt work. Ty

Edited December 1, 2019 by thehubclick
typo

[Barand]

3 hours ago, gw1500se said:

the code icon (<>)

[thehubclick]

On 12/1/2019 at 1:16 PM, Barand said:

The reason i dont see it is because im on my phone.

I code on my phone. Not the desktop.

[Barand]

It does disappear with narrow display sizes. Try shrinking your display (zoom out/ Ctrl-minus)

[thehubclick]

It might be my Firefox browser.

 

Look at screenshot my screen wont zoom.

[Barand]

What if you rotate to landscape?

[thehubclick]

Im on my phone Barand?

Ctrl + - is done on Desktop.

I dont use my desktop much.

[thehubclick]

1 minute ago, Barand said:

What if you rotate to landscape?

Il try landacape

[thehubclick]

4 minutes ago, thehubclick said:

Il try landacape

Heres landscape screenshot

[Barand]

I have no such problems with my phone

[thehubclick]

1 minute ago, thehubclick said:

Heres landscape screenshot

I dont see <> lol i need sleep

Edited December 31, 2019 by thehubclick

[Barand]

I guess the designers of the forum software thought emojis were far more important