#script.php
if ($_POST['param1'] == 1) {
echo "yes";
} else {
echo "no";
}
#script.js
$.ajax({
type: 'POST',
url: 'script.php',
data: {param1: 1},
success: function (data) {
console.log(data)
}
});
#script2.js
$.ajax({
type: 'POST',
url: 'script.php',
success: function (data) {
console.log(data)
}
});