html - Get checkbox value with php -
i try determine if checkbox checked or not, error.
test.php
<html> <body> <form method="post" action="<?php echo $_server['php_self'];?>"> use proxy : <input type="checkbox" name="use_proxy"><br><br> <input type="submit"> </form> <?php $use_proxy = $_post['use_proxy']; if ($use_proxy != "on") { $use_proxy = "off"; } echo "<p> use_proxy = " . $use_proxy . "</p><br>"; ?> </body> </html> i error: notice: undefined index: use_proxy in c:\xampp\htdocs\mbcl\checkbox_test.php on line 11 how can solve it?
this behaviour of checkbox until checked , can not fetched @ backend(php) . can try below-
<html> <body> <form method="post" action="<?php echo $_server['php_self'];?>"> use proxy : <input type="checkbox" name="use_proxy" value="off"><br><br> <input type="submit"> </form> <?php $use_proxy = isset($_post['use_proxy'])?"on":"off"; echo "<p> use_proxy = " . $use_proxy . "</p><br>"; ?> </body> </html> 
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