I try to unset my variabele when the input is not "all" in a selection of radioboxes. The if statemtent works and does the job perfectly, but the else doesn't work. Any ideas?
$profile = $_POST["profile"];
if ($profile != 'all') {
$conditions["profile"] = $profile;
} else {
unset($conditions["profile"]);
}
I think your $_POST variable may not be set. Try something like this:
either:
$profile = isset($_POST["profile"]) ? $_POST["profile"] : 'all';
or within the else block:
} else {
if(isset($conditions["profile"])) unset($conditions["profile"]);
}
Related
My code in PHP is pretty long and I want to make it shorter with creating one function with different values and than I would just write one line with function name instead of many lines of code, but it doesn't seem to work.
This is that repeating code:
if (!isset($_POST['ID_user']) || empty($_POST['ID_user'])) {
$_SESSION['ID_user_missing'] = "error";
header("location: index.php");
} else {
$ID_user = $_POST['ID_user'];
}
if (!isset($_POST['meta_name']) || empty($_POST['meta_name'])) {
$_SESSION['meta_name_missing'] = "error";
header("location: index.php");
} else {
$meta_name = $_POST['ID_user'];
}
if (!isset($_POST['meta_value']) || empty($_POST['meta_value'])) {
$_SESSION['meta_value_missing'] = "error";
header("location: index.php");
} else {
$meta_value = $_POST['meta_value'];
}
And this was the plan, instead of that code up ther, I would just have this down below:
function ifIssetPost($value) {
if (!isset($_POST[$value]) || empty($_POST[$value])) {
$_SESSION[$value.'_chybi'] = "error";
header("location: index.php");
} else {
$$value = $_POST[$value];
}
}
ifIssetPost('ID_user');
ifIssetPost('meta_name');
ifIssetPost('meta_value');
But it just doesn't work, when you try to echo for example variable $meta_name it shows that it's empty. Can you help me ? Thank you very much.
NOTE: when I doesn't that function and do it the long way, everything works just fine, but the problem comes when I use that function.
The variable is in the scope of function. That's why you cannot access to it outside the function. You could return the value:
function ifIssetPost($value) {
if (empty($_POST[$value])) { // Only empty is needed (as pointed out by #AbraCadaver)
$_SESSION[$value.'_chybi'] = "error";
header("location: index.php");
exit; // add exit to stop the execution of the script.
}
return $_POST[$value]; // return value
}
$ID_user = ifIssetPost('ID_user');
$meta_name = ifIssetPost('meta_name');
$meta_value = ifIssetPost('meta_value');
You can also follow your specification, using $$value:
function ifIssetPost($value) {
if (!isset($_POST[$value]) || empty($_POST[$value])) {
$_SESSION[$value.'_chybi'] = "error";
header("location: index.php");
} else {
return $_POST[$value];
}
}
$value = 'ID_user';
$$value = ifIssetPost($value);
echo $ID_user;
$value = 'meta_name';
$$value = ifIssetPost($value);
echo $meta_name;
You can use an array to iterate over the $_POST vars. If you want to declare a variable using a string or another variable containing an string, you need to use {}. like ${$value}
$postValues = ["ID_user", "meta_name", "meta_value"];
foreach ($postValues as $value) {
if (!isset($_POST[$value]) || empty($_POST[$value])) {
$_SESSION[$value."_missing"] = "error";
header("location: index.php");
} else {
${$value} = $_POST[$value];
}
}
I have this code:
function saveField($field, $id, $module, $value)
{
$bean = BeanFactory::getBean($module, $id);
if (is_object($bean) && $bean->id != "") {
if ($bean->field_defs[$field]['type'] == "multienum") {
$bean->$field = encodeMultienumValue($value);
}else if ($bean->field_defs[$field]['type'] == "relate" || $bean->field_defs[$field]['type'] == 'parent'){
$save_field = $bean->field_defs[$field]['id_name'];
$bean->$save_field = $value;
if ($bean->field_defs[$field]['type'] == 'parent') {
$bean->parent_type = $_REQUEST['parent_type'];
$bean->fill_in_additional_parent_fields(); // get up to date parent info as need it to display name
}
}else{
$bean->$field = $value;
}
//return here will work
$bean->save(); //this works
//nothing works here
return getDisplayValue($bean, $field);
} else {
return false;
}
}
The problem here is that anything under
$bean->save()
will not work. But I know that save is working as the values are being updated. So how can I debug this problem?
I already tried:
return var_dump($bean->save());
return print_r($bean->save());
if($bean->save()){
return "1";
}else{
return "2";
}
And none of those in the above worked I still get nothing in my return.
There is likely something such as an after_save logic hook that is executing and either causing a fatal error or doing an exit.
Try using xdebug, it should allow you to investigate further into the save method that fails.
Hello I'm having trouble thinking of a way to set custom variables with there $_GET counterpart in a cleaner way than below, this is a post-back for the url http://example.com/postback.php?id={offer_id}&offer={offer_name}&session={session_ip}&payout={payout} after running I get all $_GET with either their data or nil for all variables: $id, $offer, $session, $payout obviously i am a php newbie, please go easy on me! Thanks, any help would be great.
if (s('id')) {
$id = $_GET["id"];
} else {
$id = 'nil';
}
if (s('offer')) {
$offer = $_GET["offer"];
} else {
$offer = 'nil';
}
if (s('session')) {
$session = $_GET["session"];
} else {
$session = 'nil';
}
if (s('payout')) {
$payout = $_GET["payout"];
} else {
$payout = 'nil';
}
function s($name) {
if(isset($_GET["$name"]) && !empty($_GET["$name"])) {
return true;
}
return false;
}
Use extract: http://php.net/manual/de/function.extract.php
// Assuming $_GET = array('id' => 123, etc.)
extract($_GET);
var_dump($id);
// And later in your code
if (isset($id)) {
// Do what you need
}
maybe you can use a universal wrapper
<?php
function getValue($key, $fallback='nil') {
if(isset($_GET[$key]) $val = trim($_GET[$key]);
else $val = null;
return ($val) ? $val : $fallback;
}
and then you can handle it easyer by
<?php
$id = getValue('id'); ...
isset is not needed, and maybe you can use the ternary operator.
$id = !empty($_GET["id"]) ? $_GET["id"] : null;
$offer = !empty($_GET["offer"]) ? $_GET["offer"] : null;
$session = !empty($_GET["session"]) ? $_GET["session"] : null;
$payout = !empty($_GET["payout"]) ? $_GET["payout"] : null;
I have never done combining ajax and session before. So far i have done something like this.
var sessionvar;
$.ajaxSetup({cache: false})
$.get('test.php' ,function (data) {
sessionvar = data;
alert(sessionvar);
var checkedCbs = $('sessionvar:checked');
if (checkedCbs.length === 4) {
alert("You can only select 3 books");
this.checked = false;
}
});
I want to try set the limitations based on session. Inside the test.php i have something like this
<?php
session_start();
if(isset($_POST['sBorrow']) && $_POST['action']){
if(isset($_SESSION['sBorrow']) && is_array($_SESSION['sBorrow'])){
$sborrow = $_POST['sBorrow'];
$set = $_SESSION['sBorrow'];
}
else{
$set = array();
}
if($_POST['action'] == "SET"){
array_push($set, $_POST['sBorrow']);
$_SESSION['sBorrow'] = $set;
}
else if($_POST['action'] == "UNSET"){
$unset = $_SESSION['sBorrow'];
if(($key = array_search($_POST['sBorrow'], $unset)) !== false) {
unset($unset[$key]);
$_SESSION['sBorrow'] = $unset;
}
}
}
//session_destroy();
if(isset($_SESSION['sBorrow'])){
$countses = count($_SESSION['sBorrow']);
echo $countses;
}
// nothing requested, so return all values
print json_encode($_SESSION);
?>
Inside these i have create some array to store something. Never mind that, i just want to know how to run an ajax with session. Im not sure if my codes is right for implementing that.
I have a select box with an option for All, and then a list of users.
What I'm struggling with is creating something like this. I have most of it except trying to query the database to for it to check if the variable is in the database.
if ($variable == 'All') { code here }
else if ($variable != 'ALL' != *[result in database]*) { code here }
else { code here }
I have most of it except trying to query the database to for it to check if the variable is in the database.
Any suggestions how I can encorporate a query of a mySQL database in my if statement.
Thanks
if ($variable == 'All') {
... do something ...
} else {
$sql = "SELECT ...";
$result = mysql_query($sql) or die(mysql_error());
$row = mysql_fetch_assoc($result);
if ($row['somefield'] == 'whatever') {
... do something else ...
} else {
... do something even "elser" ...
}
}
You can't use operators like that.
Replace:
else if ($variable != 'ALL' != *[result in database]*) { code here }
With:
else if ($variable != 'ALL' AND $variable != *[result in database]*) { code here }