How can i call a php function from onchange on an html form textbox? I have tried
<input onchange="phpfunction()" ..... >
<?php
function phpfunction() {
my function
}
?>
Any Help? I Can't seem to figure it out.
Thank You
You have to do an ajax call and post that your PHP.
Example:
HTML:
<input name="blah" onchange="mainInfo(this.value);">
Javascript Function (AjaX)
function mainInfo(id) {
$.ajax({
type: "GET",
url: "dummy.php",
data: "mainid =" + id,
success: function(result) {
$("#somewhere").html(result);
}
});
};
PHP
<?php
if(isset($_GET['mainid'])){
mainInfo($_GET['mainid']);
}
?>
You can't execute PHP in the browser.
Do an AJAX call or POST to a PHP function on the web server, or write a Javascript function that executes in the browser.
you need to do it with JavaScript and send request to server. As HTML runs on client and php on sever.
you need to use jquery for this , cant use php on client
<input onchange="callphpfunction()" ..... >
<script>
callphpfunction(){
$.post("file.php",function(data){
alert(data);
});
}
</script>
file.php
<?php
function phpfunction() {
echo $data;
}
phpfunction();
?>
来源：https://stackoverflow.com/questions/26148325/textbox-onchange-call-php-function