Using GET, POST and GLOBALS
0
I'm trying to sort table of data by it's columns(as hyperlinks), but also to navigate using < or > buttons.
<?php
...
if (isset($_POST["next"]) && isset($_POST["start"]))
{
//force start to be an integer and add 5 to it
$start = (int)$_POST["start"] + 5;
}
elseif (isset($_POST["prev"]) && isset($_POST["start"]))
{
//force start to be an integer and remove 5 from it
$start = (int)$_POST["start"] - 5;
}
else
{
$start = 0;
}
// if one of hyperlinks in table heading was clicked
if (isset($_GET["sort"]))
{
$orderByFields = ["TerritoryDescription", "RegionDescription"];
$GLOBALS['sort'] = $_GET["sort"];
...
SQL here.
}
else
{
...
}
//problem here
// if next button was pressed
if (isset($_POST['next']))
{
echo 'next';
if (isset($_GET['sort']))
{
echo 'sort';
//undefined
//i'm trying to retrive value here.
echo $GLOBALS['sort'];
}
}
// if prev button was pressed
elseif (isset($_POST['prev']))
{
echo 'prev';
}
...
?>
I'm trying to retrieve value $GLOBALS['sort'] when < or > button was pressed so I can sort the SQL results by $GLOBALS['sort']. But the variable is undefined when I try to access from outside.
php post get
asked Nov 20 at 4:03
Logan Lee
14
add a comment |
0
I'm trying to sort table of data by it's columns(as hyperlinks), but also to navigate using < or > buttons.
<?php
...
if (isset($_POST["next"]) && isset($_POST["start"]))
{
//force start to be an integer and add 5 to it
$start = (int)$_POST["start"] + 5;
}
elseif (isset($_POST["prev"]) && isset($_POST["start"]))
{
//force start to be an integer and remove 5 from it
$start = (int)$_POST["start"] - 5;
}
else
{
$start = 0;
}
// if one of hyperlinks in table heading was clicked
if (isset($_GET["sort"]))
{
$orderByFields = ["TerritoryDescription", "RegionDescription"];
$GLOBALS['sort'] = $_GET["sort"];
...
SQL here.
}
else
{
...
}
//problem here
// if next button was pressed
if (isset($_POST['next']))
{
echo 'next';
if (isset($_GET['sort']))
{
echo 'sort';
//undefined
//i'm trying to retrive value here.
echo $GLOBALS['sort'];
}
}
// if prev button was pressed
elseif (isset($_POST['prev']))
{
echo 'prev';
}
...
?>
I'm trying to retrieve value $GLOBALS['sort'] when < or > button was pressed so I can sort the SQL results by $GLOBALS['sort']. But the variable is undefined when I try to access from outside.
php post get
asked Nov 20 at 4:03
Logan Lee
14
1
I'm suspecting you're expecting the value to stick until the following request(s). In this case you'll need to either store it (here,sort) into the session, or manually pass it along to the following requests.
– Jeto
Nov 20 at 4:16
thx jeto i used SESSION variable for sort and it worked!
– Logan Lee
Nov 20 at 4:30
add a comment |
0
0
0
I'm trying to sort table of data by it's columns(as hyperlinks), but also to navigate using < or > buttons.
<?php
...
if (isset($_POST["next"]) && isset($_POST["start"]))
{
//force start to be an integer and add 5 to it
$start = (int)$_POST["start"] + 5;
}
elseif (isset($_POST["prev"]) && isset($_POST["start"]))
{
//force start to be an integer and remove 5 from it
$start = (int)$_POST["start"] - 5;
}
else
{
$start = 0;
}
// if one of hyperlinks in table heading was clicked
if (isset($_GET["sort"]))
{
$orderByFields = ["TerritoryDescription", "RegionDescription"];
$GLOBALS['sort'] = $_GET["sort"];
...
SQL here.
}
else
{
...
}
//problem here
// if next button was pressed
if (isset($_POST['next']))
{
echo 'next';
if (isset($_GET['sort']))
{
echo 'sort';
//undefined
//i'm trying to retrive value here.
echo $GLOBALS['sort'];
}
}
// if prev button was pressed
elseif (isset($_POST['prev']))
{
echo 'prev';
}
...
?>
I'm trying to retrieve value $GLOBALS['sort'] when < or > button was pressed so I can sort the SQL results by $GLOBALS['sort']. But the variable is undefined when I try to access from outside.
php post get
asked Nov 20 at 4:03
Logan Lee
14
I'm trying to sort table of data by it's columns(as hyperlinks), but also to navigate using < or > buttons.
<?php
...
if (isset($_POST["next"]) && isset($_POST["start"]))
{
//force start to be an integer and add 5 to it
$start = (int)$_POST["start"] + 5;
}
elseif (isset($_POST["prev"]) && isset($_POST["start"]))
{
//force start to be an integer and remove 5 from it
$start = (int)$_POST["start"] - 5;
}
else
{
$start = 0;
}
// if one of hyperlinks in table heading was clicked
if (isset($_GET["sort"]))
{
$orderByFields = ["TerritoryDescription", "RegionDescription"];
$GLOBALS['sort'] = $_GET["sort"];
...
SQL here.
}
else
{
...
}
//problem here
// if next button was pressed
if (isset($_POST['next']))
{
echo 'next';
if (isset($_GET['sort']))
{
echo 'sort';
//undefined
//i'm trying to retrive value here.
echo $GLOBALS['sort'];
}
}
// if prev button was pressed
elseif (isset($_POST['prev']))
{
echo 'prev';
}
...
?>
I'm trying to retrieve value $GLOBALS['sort'] when < or > button was pressed so I can sort the SQL results by $GLOBALS['sort']. But the variable is undefined when I try to access from outside.
php post get
php post get
asked Nov 20 at 4:03
Logan Lee
14
asked Nov 20 at 4:03
Logan Lee
14
asked Nov 20 at 4:03
Logan Lee
14
asked Nov 20 at 4:03
Logan Lee
14
asked Nov 20 at 4:03
Logan Lee
14
14
1
I'm suspecting you're expecting the value to stick until the following request(s). In this case you'll need to either store it (here,sort) into the session, or manually pass it along to the following requests.
– Jeto
Nov 20 at 4:16
thx jeto i used SESSION variable for sort and it worked!
– Logan Lee
Nov 20 at 4:30
add a comment |
1
I'm suspecting you're expecting the value to stick until the following request(s). In this case you'll need to either store it (here,sort) into the session, or manually pass it along to the following requests.
– Jeto
Nov 20 at 4:16
thx jeto i used SESSION variable for sort and it worked!
– Logan Lee
Nov 20 at 4:30
1
1
I'm suspecting you're expecting the value to stick until the following request(s). In this case you'll need to either store it (here,
sort) into the session, or manually pass it along to the following requests.– Jeto
Nov 20 at 4:16
I'm suspecting you're expecting the value to stick until the following request(s). In this case you'll need to either store it (here,
sort) into the session, or manually pass it along to the following requests.– Jeto
Nov 20 at 4:16
thx jeto i used SESSION variable for sort and it worked!
– Logan Lee
Nov 20 at 4:30
thx jeto i used SESSION variable for sort and it worked!
– Logan Lee
Nov 20 at 4:30
add a comment |
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1
I'm suspecting you're expecting the value to stick until the following request(s). In this case you'll need to either store it (here,
sort) into the session, or manually pass it along to the following requests.– Jeto
Nov 20 at 4:16
thx jeto i used SESSION variable for sort and it worked!
– Logan Lee
Nov 20 at 4:30