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Dinamicamente envia um valor via POST para o PHP renderizar HTML
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| <!doctype html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <meta name="viewport" | |
| content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"> | |
| <meta http-equiv="X-UA-Compatible" content="ie=edge"> | |
| <title>Document</title> | |
| </head> | |
| <body> | |
| <?php | |
| $val = isset($_POST['val']) ? $_POST['val'] : null; // aqui vai obter o valor do campo val do javascript | |
| if ($val) { | |
| if ($val == "a") { | |
| var_dump($val); | |
| echo "<script> alert('pressionou ok!')</script>"; | |
| } | |
| if ($val == "b") { | |
| var_dump($val); | |
| echo "<script> alert('pressionou cancel!')</script>"; | |
| } | |
| } | |
| ?> | |
| <script language="javascript" type="text/javascript"> | |
| var decisao = confirm("Clique em um botão!"); | |
| var myform = document.createElement('FORM'); | |
| myform.method = 'POST'; | |
| myform.action = '/index.php'; | |
| const valueToSend = document.createElement('INPUT'); | |
| valueToSend.type = 'HIDDEN'; | |
| valueToSend.name = 'val'; | |
| if (decisao){ | |
| valueToSend.value = "a"; | |
| } else { | |
| valueToSend.value = "b"; | |
| } | |
| myform.appendChild(valueToSend); | |
| document.body.appendChild(myform); | |
| myform.submit(); | |
| </script> | |
| </body> | |
| </html> |
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