Good afternoon, classmates, I have a problem, I hope you can support me, I need to pass data stored in a variable using JavaScript to PHP, how can I do that? I came up with the following but I see that you can not:
<body>
<script>
var miVariable = "Hola Mundo";
</script>
<?php
$datos = "<script>miVariable</script>";
echo $datos;
?>
</body>
Thank you in advance to everyone.
P. D. Use Windows 7 and PHP 7.
My solution would be to place your value in a text box using javascript and followed by using POST php to take the value.
javascript_a_php.php
<html>
<form action="tu_action.php" method="POST">
<input type="text" name="caja_valor" id="caja_valor" value="">
<input type="submit" value="Guardar">
</form>
</html>
<script>
let valor = 4;
document.getElementById("caja_valor").value = valor;
</script>
tu_action.php
<?php
$valor = $_POST["caja_valor"];
echo $valor;
// el valor
?>
The ID in a field is used so that javascript can access the
Element values.
The NAME is used so that PHP can get the data
The code JAVASCRIPT is already on your side as loading the values, if
automatically, with a button, any event among others.
The code PHP will be activated when you press the button.
try using var mivariable = "<?php $mivar = "holamundo" ?>";
declare your variable first in php, then from javascript you assign it with another value.
php
echo $mivar;
I would do it like this:
<?php
$captura='';
if(!isset($_GET['variable'])){
$captura='No';
}
?>
<body onload="parametro(<?php echo $captura; ?>) ">
<script>
function parametro(captura){
var miVariable = "Hola Mundo";
if(captura=='No'){
window.location="esta_pagina.php?variable=miVariable";
}
}
</script>
<?php
$datos = $_GET['variable'];
echo $datos;
?>
</body>
I hope and serve you.