CodeIgniter allows access to POSTed data via:
$this->input->post('input_name');
where 'input_name' is the name of a form field. This works well for a static form where each input name in known ahead of time.
In my case, I am loading a collection of key/value pairs from the database. The form contains a text input for each key/value pair.
I am wondering, is there a way to get an array of posted data via the CodeIgniter api?
Thanks!
According to the documentation, no. I would suggest just using array_keys($_POST) to get the keys.
foreach($this->input->post() as $key => $val) { echo "<p>Key: ".$key. " Value:" . $val . "</p>\n"; }
that can be used to
Surely if you have an array of keys from the database you can use that, like :
foreach ($arrayFromDb as $key => $value) {
$newValue = $this->input->post($key);
}
Then you have the advantage that people if people submit additional fields (e.g. by modifying the form and posting it themselves) those fields will be ignored
$array_db_columns = $this->db->query('SHOW COLUMNS FROM ci_props');
$array_db_columns = $array_db_columns->result_array();
$array_save_values = array();
foreach ( $array_db_columns as $value )
{
$array_save_values[$value['Field']] = $this->input->post($value['Field']);
}
insert :
$this->db->insert('props', $array_save_values);
update :
$this->db->where('id',$id); $this->db->update('props',$array_save_values);
Related
i want to display data from database and also i have created function in model file which is showing data from database but all values are shown in the array format.
problem is that when i print echo $values['title']; in foreach loop it is showing only first letter from title array??
model code
function reviewcitypage()
{
$cacheKey = 'city_page';
GigaCache::set(array('duration'=>"+1 minutes",'path'=>CACHE));
$cachedCategoryData = GigaCache::read($cacheKey);
if($cachedCategoryData && !cr('DynamicPage.field'))
{
$recentactivity = $cachedCategoryData;
}else
{
$recentactivity= $this->find("list",array("conditions"=>array("status"=>1),'fields'=>array('title','body','rating'),'recursive'=>-1,'limit'=>10));
//dont't set cache if dynamic field
if(!cr('DynamicPage.field'))
{
GigaCache::set(array('duration'=>"+1 minutes",'path'=>CACHE));
GigaCache::write($cacheKey,$recentactivity);
}
}
return $recentactivity;
}
view file
$ReviewObj = cri('Review');
$recentactivity = $ReviewObj->reviewcitypage();
foreach ($recentactivity as $name => $value){
foreach($value as $values)
{
echo $values['title'];
}
}
**problem is solved now thanks for support **
i have changed the code in model file and it is woking now
$recentactivity= $this-
>find("all",array("conditions"=>array("status"=>1),'recursive'=>-1,
'limit'=>10));
Your find() query is preparing the data as a 'list'. in cake lists are always key => value pair arrays. so in your view when you use the second foreach loop you are saying foreach character in a string...do.....
in your example $value can only be a string. foreaching it can only make $values a single char.
Let me know if you still unsure what i mean. not the best at explaining what i mean
http://book.cakephp.org/2.0/en/models/retrieving-your-data.html#find-list
Because you are after 3 fields I suggest using either first or all in place of list as the first argument in the find() method.
I have an HTML form being populated by a table of customer requests. The user reviews each request, sets an operation, and submits. The operation gets set into a POST arg as follow
$postArray = array_keys($_POST);
[1]=>Keep [2]=>Reject [3]=>Reject [4]=>Ignore ["item id"]=>"operation"
This is how I am parsing my POST args, it seems awkward, the unused $idx. I am new to PHP, is there a smoother way to do this?
$postArray = array_keys($_POST);
foreach($postArray as $idx => $itemId) {
$operation = $_POST[$itemId];
echo "$itemId $operation </br>";
// ...perform operation...
}
foreach ($_POST as $key => $value) // $key will contain the name of the array key
You could use
foreach($_POST as $itemId => $operation ) {
echo "$itemId $operation </br>";
// ...perform operation...
}
instead
http://nz.php.net/manual/en/control-structures.foreach.php
You don't have to use $idx in loop if is not needed.
It might be like that:
foreach($postArray as $itemId) {
...
}
Main problem is the data structure is very messy.
Maybe it's better way to organise form output.
Probably in some well structured associative array.
I can't see the form, I don't know the details so it's hard to tell more.
I am trying to pass an array of values through a form submission. As an example:
example.com?value1=178&value2=345&value3=2356
The easy solution would be for me to do the following to get the values on the new page:
$value1=$_GET['value1'];
$value2=$_GET['value2'];
$value3=$_GET['value3'];
The difficulty that I am having is that the variable after the word 'value' passed through the form will change with each submission. So I have amended the code to pass as:
example.com?value14=178&variable=14&value23=345&variable=23&value63=2356&variable=63
As you can see here, I have now passed the variable that comes in from of the value as a GET parameter. My attempt then GET these values to display individually on the submitted page is as follows:
$variable=$_GET['variable'];
$value=$_GET['value'.$variable];
echo $value . '<br>';
This code almost works. I am able to get the last array which is passed through to display. How can I fix this code to get all of the passed values to display on the submitted page?
Use PHP's array notation for form fields:
val[]=178&val[]=14&val[]=345&etc...
This will cause $_GET['val'] to be an array:
$_GET = array(
'val' => array(178, 14, 345, etc...)
)
If you can't rearrange the URL like that, you can try using preg_grep:
$matches = preg_grep('/^variable\d+$/', array_keys($_GET));
which'll return :
$matches= array('variable1', 'variable2', 'variable3', etc...);
Use an array, for example like this without the need for variable $variable.
example.com?value[14]=178&value[23]=345&value[63]=2356
foreach ($_GET['value'] as $key => value) {
echo $key . " => " . $value . "<br/>";
}
EDIT: Another way for getting the values would be looping the whole $_GET -array and parsing values from there like this (variables are always in the form of "value" followed by X numbers):
example.com?value14=178&value23=345&value63=2356
$values = array();
foreach ($_GET as $key => $value) {
if (preg_match('/^value[\d]+$/', $key)) {
// remove "value" from the beginning of the key
$key = str_replace('value', '', $key);
// save result to array
$values[$key] = $value;
}
}
See http_build_query()
I've been working on trying to write a function that will grab the POST values of any given form submission, pop them into an array, loop through the array using trim, addslashes etcetera pass that value back to a variable where it can then be passed to a database.
Now the hurdle I have atm is getting all the input,textarea,select element data into an array upon form submission. code I have follows
$fields = array($_POST['1'], $_POST['2']);
$i = 0;
foreach ($fields as $field) {
$i++;
${'field'.$i } = trim(addslashes(strip_tags($field)));
echo "POST field info #". $i ." - ". ${'field'.$i }."<br />";
}
As you can see everything is fine here baring that the POST value names are still being in-putted statically, what I need is a way to get that POST data fed into a loop which dynamically calls the POST name using an increment variable and then pop all that data into the same array. Code I have tried follows.
for ($ii=0;$ii++;) {
foreach($_POST['$ii'] as $field) {
$fields = array($field);
}
}
$i = 0;
foreach ($fields as $field) {
$i++;
${'field'.$i } = trim(addslashes(strip_tags($field)));
echo "POST field info #". $i ." - ". ${'field'.$i }."<br />";
}
Now I know this wont work but I can sense I am relatively close, so I am wondering if any clever person can help me sort the last part out? I sadly am now going to sleep and wont be viewing this post for at least 9 hours, apologies.
Thanks in advance.
Dan.
$arrayOfPostValues = $_POST; // it already is an array
$arrayOfPostValues = array_map('strip_tags', $arrayOfPostValues);
$arrayOfPostValues = array_map('trim', $arrayOfPostValues);
Or, if you really, really want to use a loop:
foreach ($arrayOfPostValues as &$value) {
$value = trim(striptags($value));
}
I'd absolutely advise against the use of addslashes, it serves very little purpose. Use mysql_real_escape_string or prepared statements instead.
I'd also advise against breaking the vales out of the array into separate variables, it can only cause problems. If you really want to do it, there's the extract function, which does exactly that. But, again, don't do it. Arrays are the perfect way to handle this kind of data.
You need to assign values to $_POST[1] and $_POST[2] to begin with, I've done this for you but normally they would be populated from a form I assume?
I'm not sure why you want to do this sort of thing: ${'field'.$key}, but I've left that part as is as I assume you must have a reason.
Anyway I've modified your code a bit, see below.
$_POST['1'] = '<h1>variable 1</h1>';
$_POST['2'] = '<h2>variable 2</h2>';
foreach($_POST as $key => $value){
${'field'.$key} = trim(addslashes(strip_tags($value)));
echo "POST field info #". $key ." = ". ${'field'.$key}."<br />";
}
The above code outputs:
POST field info #1 = variable 1
POST field info #2 = variable 2
On a side note, using field names such as '1' and '2' is not very good. Try using something more descriptive but as I said above I assume you have a reason for doing this.
UPDATE:
You can still get this to work for any form even if you are using specific names for the form elements. I have added a few lines below as an example for you.
$_POST['email'] = 'example#example.com';
$_POST['password'] = 'hgbks78db';
$_POST['name'] = '';
foreach($_POST as $key => $value){
if($value==''){
echo 'POST field "'.$key . '" is empty<br />';
/* I added the name of the field that is empty to an error array
so you have a way of storing all blank fields */
$a_error[] = $key;
}
else{
echo 'POST field "'.$key . '" is not empty<br />';
}
}
I'm basically looking to simply print out each of the allowed values in a CCK field..
i know the allowed values are stored inside a text field within the table: 'content_node_field'.
the values are then stored within 'global_settings'
I'm looking to somehow print out each individual allowed value using a PHP loop.
however with all values being stored within one text field.. im finding it hard to print out each value individually.
Something like this should do the trick.
// Get the global_settings like you described.
$serialized_data = db_result(db_query("..."));
// Unserialize the data.
$unserialized_data = unserialize($serialized_data)
// Foreach the allowed values.
$values = array();
foreach(explode("\n", $unserialized_data['allowed_values']) as $value) {
$values[] = $value;
}
If I am getting your question right, you can create PHP arrays by simply suffixing the [] to the names of the fields, so for example:
<input type="text" name="myname[]" />
Now you can get the values of the array like this:
foreach($myname as $value)
{
echo $value . '<br />';
}
Update Based On Comment:
You can use the json_decode function to convert your data to array and then manipulate accordingly:
Example:
$json = '{"a":1,"b":2,"c":3,"d":4,"e":5}';
var_dump(json_decode($json, true));