. . PHP . :
<html>
<body>
<form method="post" action="<?php echo $PHP_SELF?>">
First name:<input type="Text" name="first"><br>
Last name:<input type="Text" name="last"><br>
Address:<input type="Text" name="address"><br>
Position:<input type="Text" name="position"><br>
<input type="Submit" name="submit" value="Enter information">
</form>
</body>
</html>
, $PHP_SELF. , PHP- HTML. , . -, , , , .
Submit. , , $submit. , , , .
, , . , , . , , .
, , , . , , , $HTTP_POST_VARS. . , , $GLOBALS.
<html>
<body>
<?php
if ($submit) {
// process form
while (list($name, $value) = each($HTTP_POST_VARS)) {
echo "$name = $value<br>\n";
}
} else{
// display form
?>
<form method="post" action="<?php echo $PHP_SELF?>">
First name:<input type="Text" name="first"><br>
Last name:<input type="Text" name="last"><br>
Address:<input type="Text" name="address"><br>
Position:<input type="Text" name="position"><br>
<input type="Submit" name="submit" value="Enter information">
</form>
<?php
} // end if
?>
</body>
</html>
, . .
<html>
<body>
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|
|
<?php
if ($submit) {
// process form
$db = mysql_connect("localhost", "root");
mysql_select_db("mydb",$db);
$sql = "INSERT INTO employees (first,last,address,position) VALUES
('$first','$last','$address','$position')";
$result = mysql_query($sql);
echo "Thank you! Information entered.\n";
} else{
// display form
?>
<form method="post" action="<?php echo $PHP_SELF?>">
First name:<input type="Text" name="first"><br>
Last name:<input type="Text" name="last"><br>
Address:<input type="Text" name="address"><br>
Position:<input type="Text" name="position"><br>
<input type="Submit" name="submit" value="Enter information">
</form>
<?php
}
// end if
?>
</body>
</html>
. . , - , ? , ? . . SQL- ($sql), mysql_query(). . - , SQL- , .
, . , . . : , . , . , . . :
<html>
<body>
<?php
$db = mysql_connect("localhost", "root");
mysql_select_db("mydb",$db);
if ($id) {
// query the DB
$sql = "SELECT * FROM employees WHERE id=$id";
$result = mysql_query($sql);
$myrow = mysql_fetch_array($result);
?>
<form method="post" action="<?php echo $PHP_SELF?>">
<input type=hidden name="id" value="<?php echo $myrow["id"]?>">
First name:<input type="Text" name="first" value="<?php echo $myrow["first"]?>"><br>
Last name:<input type="Text" name="last" value="<?php echo $myrow["last"]?>"><br>
Address:<input type="Text" name="address" value="<?php echo $myrow["address"]?>"><br>
Position:<input type="Text" name="position" value="<?php echo $myrow["position"]?>"><br>
<input type="Submit" name="submit" value="Enter information">
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</form>
<?php
} else {
// display list of employees
$result = mysql_query("SELECT * FROM employees",$db);
while ($myrow = mysql_fetch_array($result)) {
printf("<a href=\"%s?id=%s\">%s %s</a><br>\n", $PHP_SELF, $myrow["id"], $myrow["first"],
$myrow["last"]);
}
}
?>
</body>
</html>
, . . . Submit, , , . SQL-.
<html>
<body>
<?php
$db = mysql_connect("localhost", "root");
mysql_select_db("mydb",$db);
if ($id) {
if ($submit) {
$sql = "UPDATE employees SET first='$first',last='$last',address='$address',position='$position'
WHERE id=$id";
$result = mysql_query($sql);
echo "Thank you! Information updated.\n";
} else {
// query the DB
$sql = "SELECT * FROM employees WHERE id=$id";
$result = mysql_query($sql);
$myrow = mysql_fetch_array($result);
?>
<form method="post" action="<?php echo $PHP_SELF?>">
<input type=hidden name="id" value="<?php echo $myrow["id"]?>">
First name:<input type="Text" name="first" value="<?php echo $myrow["first"]?>"><br>
Last name:<input type="Text" name="last" value="<?php echo $myrow["last"]?>"><br>
Address:<input type="Text" name="address" value="<?php echo $myrow["address"]?>"><br>
Position:<input type="Text" name="position" value="<?php echo $myrow["position"]?>"><br>
<input type="Submit" name="submit" value="Enter information">
</form>
<?php
}
} else {
// display list of employees
$result = mysql_query("SELECT * FROM employees",$db);
while ($myrow = mysql_fetch_array($result)) {
printf("<a href=\"%s?id=%s\">%s %s</a><br>\n", $PHP_SELF, $myrow["id"], $myrow["first"],
$myrow["last"]);
}
}
?>
</body>
</html>
- PHP-.
<html>
<body>
<?php
$db = mysql_connect("localhost", "root");
mysql_select_db("mydb",$db);
if ($submit) {
// here if no ID then adding else we're editing
if ($id) {
$sql = "UPDATE employees SET first='$first',last='$last',address='$address',position='$position'
WHERE id=$id";
} else {
$sql = "INSERT INTO employees (first,last,address,position) VALUES
('$first','$last','$address','$position')";
}
// run SQL against the DB
$result = mysql_query($sql);
echo "Record updated/edited!<p>";
} elseif ($delete) {
// delete a record
$sql = "DELETE FROM employees WHERE id=$id";
$result = mysql_query($sql);
echo "$sql Record deleted!<p>";
} else {
// this part happens if we don't press submit
if (!$id) {
// print the list if there is not editing
$result = mysql_query("SELECT * FROM employees",$db);
while ($myrow = mysql_fetch_array($result)) {
printf("<a href=\"%s?id=%s\">%s %s</a> \n", $PHP_SELF, $myrow["id"], $myrow["first"],
$myrow["last"]);
printf("<a href=\"%s?id=%s&delete=yes\">(DELETE)</a><br>", $PHP_SELF, $myrow["id"]);
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}
}
?>
<P>
<a href="<?php echo $PHP_SELF?>">ADD A RECORD</a>
<P>
<form method="post" action="<?php echo $PHP_SELF?>">
<?php
if ($id)
{
// editing so select a record
$sql = "SELECT * FROM employees WHERE id=$id";
$result = mysql_query($sql);
$myrow = mysql_fetch_array($result);
$id = $myrow["id"];
$first = $myrow["first"];
$last = $myrow["last"];
$address = $myrow["address"];
$position = $myrow["position"];
// print the id for editing
?>
<input type=hidden name="id" value="<?php echo $id?>">
<?php
}
?>
First name:<input type="Text" name="first" value="<?php echo $first?>"><br>
Last name:<input type="Text" name="last" value="<?php echo $last?>"><br>
Address:<input type="Text" name="address" value="<?php echo $address?>"><br>
Position:<input type="Text" name="position" value="<?php echo $position?>"><br>
<input type="Submit" name="submit" value="Enter information">
</form>
<?php
}
?>
</body>
</html>
, . . if() , Submit, , , $id. , . .
, $delete. , . , if() , POST, if() , GET.
, , : . $id. , . . while() if(), SQL - SELECT, INSERT, UPDATE, DELETE. , , URL .
