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I want testFunction() to call check() that i created in my plugin php when i click My Button. How do i make it work ?
<?php
function createButton()
{
echo '<button onclick="testFunction()">My Button</button>';
}
function check()
{
alert("Works");
}
function my_php_function()
{
echo '<script>
function testFunction() {
check();
}
</script>';
}
add_action( 'wp_footer', 'my_php_function' );
AJAX is the solution. For more info: https://codex.wordpress.org/AJAX_in_Plugins#Separate_JavaScript_File
I could not stand by and see that mangled code. Here is what I think you meant to do.
<?php
function createButton()
{
echo '<button onclick="testFunction()">My Button</button>';
}
function my_php_function()
{
echo '<script>
function check()
{
alert("Works");
}
function testFunction() {
check();
}
</script>';
}
add_action( 'wp_footer', 'my_php_function' );
check()either needs to be a JavaScript function in a .js file or between<script></script>tags, or if it needs to be a PHP function, you need to use AJAX to run the function on the server. Your code is just sample code so I can't tell what you need. – Jacob Peattie Jun 5 '20 at 1:19check()needs to be a PHP function. So i need to use AJAX, how do i do that ? – Kitiara Jun 5 '20 at 1:29