PHP/Form/ GET
Содержание
Properly Checking for Submission Using Image Widgets
<source lang="html4strict">
<INPUT TYPE="image" NAME="submit_one" SRC="b.gif"> <INPUT TYPE="image" NAME="submit_two" SRC="b2.gif">
//Properly determining which submission button was clicked in PHP: <?php
if(isset($_GET["submit_one_x"])) {
} elseif(isset($_GET["submit_two_x"])) {
} else {
}
?>
</source>
Reading Input from the Form
<source lang="html4strict">
<html> <head> <title>A Simple HTML Form</title> </head> <body>
<form action="index.php" method="get">
<input type="text" name="user" />
<textarea name="address" rows="5" cols="40"> </textarea>
<input type="submit" value="hit it!" />
</form>
</body> </html>
// index.php <html> <body>
<?php print "Welcome " . $_GET ["user"] . "
\n\n"; print "Your address is:
" . $_GET ["address"] . ""; ?>
</body> </html>
</source>
Time-Sensitive Form Example
<source lang="html4strict">
<? <FORM ACTION="index.php" METHOD=GET> <INPUT TYPE="hidden" NAME="time" VALUE="<?php echo time(); ?>"> Enter your message (5 minute time limit):<INPUT TYPE="text" NAME="mytext" VALUE=""> <INPUT TYPE="submit" Value="Send Data"> </FORM> if($_GET["time"]+300 >= time()) {
echo "You took too long!
"; exit;
} ?>
</source>
Using Arrays with Form Data in PHP
<source lang="html4strict">
<SELECT NAME="myselect[]" MULTIPLE SIZE=3> <OPTION VALUE="value1">A</OPTION> <OPTION VALUE="value2">B</OPTION> <OPTION VALUE="value3">C</OPTION> <OPTION VALUE="value4">D</OPTION> </SELECT>
//The PHP code to access which value(s) were selected: <?php
foreach($_GET["myselect"] as $val) {
echo "You selected: $val
";
}
echo "You selected ".count($_GET["myselect"])." Values.";
?>
</source>
