<input type="number" name="day1">
<input type="number" name="day2">
<input type="number" name="day3>
My question is, how to count only filled fields, so if I fill only day1 with some value, count result will be 1, and if I fill 3 days with some values, count result will be 3.
I'm using php + html.
It would be better to use an array of inputs instead of numbered names:
<input type="number" name="day[1]">
<input type="number" name="day[2]">
<input type="number" name="day[3]">
Then in PHP just filter out empty ones:
$count = count(array_filter($_POST['day']));
That will filter out 0 as well, if you don't want that then filter checking for an empty string:
$count = count(array_filter($_POST['day'], function($v) { return $v !== '';}));
Related
I have been searching this for the last couple of hours and there are a few very similar questions and answers but none are quite working for my situation. What I'm trying to do is insert a list of songs set to the same value for two columns, one per row, and with a couple of options set via radio buttons. The latter is the reason why I can't just write all of the songs in a textarea and split them.
This is what the form looks like (obviously not fully designed)
There are only three there now while I get it working, in reality an unlimited amount may be added via javascript.
And the code:
<form action="" method="post">
<label>Session ID</label>
<input type="text" name="session-id"><br>
<label>Songs</label><br>
<input type="text" name="song-key[]"><input type="checkbox" name="is-partial[]"><input type="checkbox" name="is-jam[]"><br>
<input type="text" name="song-key[]"><input type="checkbox" name="is-partial[]"><input type="checkbox" name="is-jam[]"><br>
<input type="text" name="song-key[]"><input type="checkbox" name="is-partial[]"><input type="checkbox" name="is-jam[]"><br>
<input type="text" name="update-date" value="<?php echo date(" Y-m-d H:i:s ");?>" hidden readonly><br>
<input type="submit" name="submit" value="Submit">
</form>
The desired result, assuming the ID has been set and a unique song entered for each of the them, and whatever variety on the radio buttons, would be three table rows. session-id and update-date would all be the same value, the rest would be unique based on entry.
This is what I currently have, but it only inserts the last of the three songs.
for ($i=0; $i < count($_POST['song-key']); $i++ ) {
$sessionkey = mysqli_real_escape_string($connection, $_POST["session-key"]);
$songkey = mysqli_real_escape_string($connection, $_POST["song-key"][$i]);
$partial = mysqli_real_escape_string($connection, isset($_POST['is-partial'][$i])) ? 1 : 0;
$jam = mysqli_real_escape_string($connection, isset($_POST['is-jam'][$i])) ? 1 : 0;
$updated = mysqli_real_escape_string($connection, $_POST["update-date"]);
$sql = "INSERT INTO session_songs (session_key, song_key, is_partial, is_jam, last_updated)
VALUES ('$sessionkey', '$songkey', '$partial', '$jam', '$updated')";
}
What do I need to change to ensure all three (or more) are entered?
If you alter your input names, you can get a more useful $_POST array.
<input type="text" name="songs[0][key]">
<input type="checkbox" name="songs[0][is-partial]">
<input type="checkbox" name="songs[0][is-jam]"><br>
<input type="text" name="songs[1][key]">
<input type="checkbox" name="songs[1][is-partial]">
<input type="checkbox" name="songs[1][is-jam]"><br>
<input type="text" name="songs[2][key]">
<input type="checkbox" name="songs[2][is-partial]">
<input type="checkbox" name="songs[2][is-jam]"><br>
With specified keys, the checkbox type inputs will match up properly with the text inputs, where they way you have it now, they will not*, because only checked checkboxes are submitted to PHP. (Try only checking "is-partial" in the second and "is-jam" in the third row, and then var_dump($_POST), and you'll see that they both have index 0.)
If your form is structured like that, you can insert your records using a foreach loop instead of a for loop.
foreach ($_POST['songs'] as $song) {
$key = $song['key'];
$partial = isset($song['is-partial']) ? 1 : 0;
$jam = isset($song['is-jam']) ? 1 : 0;
// do the insert inside the loop rather than just building the SQL
}
The reason you're currently only getting the last one is that you're defining the SQL string inside the loop, but without executing the statement in the loop, you'll only get the values from the last iteration of the loop. Move your query execution inside the loop and you should get all three rows.
*unless they are all checked
I can't get this to work. I need to update many records in 1 column, based on what's checked and filled out. I tried different combinations of checking and unchecking and having the text fields blank or not blank, and in this php post code i tried many different things, but can't figure out the correct combinations and if/elses or issets or empties, etc.
the values in the checkboxes correspond to record/row IDs. all the text boxes will be prefilled with prices. all the checkboxes will be dynamically checked or unchecked. a person can undo checked checkboxes if they want or check checkboxes that are not checked. on post, all the records that are checked should get the matching text box value.
the problem is i can't get the 2 arrays to match in my post. for example, in this sample set of fields, let's say i check the 2nd checkbox and the 4th checkbox. the records that should update and the values that should save into the column should be as follows...
2 -> 17.67
4 -> 19.84
but instead i get:
2 -> 16.95
4 -> 17.67
or this (if i remove the values from 1st and 3rd text boxes):
2 -> empty
4 -> 17.67
or this (2nd checkbox id and value missing completely)
4 -> 17.67
what am i doing wrong?
if (isset($_POST["savelist"]) && !empty($_POST["savelist"])) {
$productidcheckboxes = isset($_POST['productid']) ? $_POST['productid'] : array();
$listprices = isset($_POST['listprice']) ? $_POST['listprice'] : array();
//other things i tried
//$listprices = (empty($_POST['listprice'])) ? $_POST['listprice'] : array();
//$listprices = (!empty($_POST['listprice'])) ? $_POST['listprice'] : array();
//$productidcheckboxes = $_POST['productid'];
//$listprices = $_POST['listprice'];
$new = array();
for ($i=0; $i<count($productidcheckboxes); $i++) {
$new[] = $productidcheckboxes[$i];
$new[] = $listprices[$i];
}
$k=0;
foreach ($new as $value) {
$k++;
if($k==1){
$theid = $value;
}
if($k==2){
$thelistprice = $value;
//different ifs i tried
//if ($theid<>"")
//if ($value<>"")
//if ($theid<>"" && $thelistprice<>"")
//if ($theid<>"" && $value<>"")
if ($thelistprice<>"")
{
echo $theid.": ";
echo $thelistprice."<br>";
//update table with the list prices
//mysql_query("UPDATE table_name SET mylistprices = '$thelistprice' WHERE id = $theid");
}
$theid = "";
$thelistprice = "";
$k=0;
}
}
}
form looks like this
<form action="" method="post">
<input type="checkbox" value="1" name="productid[]">
<input type="text" value="16.95" name="listprice[]">
<input type="checkbox" value="2" name="productid[]">
<input type="text" value="17.67" name="listprice[]">
<input type="checkbox" value="3" name="productid[]">
<input type="text" value="18.81" name="listprice[]">
<input type="checkbox" value="4" name="productid[]">
<input type="text" value="19.84" name="listprice[]">
<input type="checkbox" value="5" name="productid[]">
<input type="text" value="16.85" name="listprice[]">
<input type="submit" value="Save List" name="savelist">
</form>
by the way, by uneven i mean all the checkboxes will have values so correct rows will be updated, but the text boxes may or may not be filled. i would like it if i didn't have to clear any values in checkboxes or text inputs. it should just update records that are checked with it's corresponding values, and ignore non-checked checkboxes and the non-checked checkboxes corresponding values. but in the end, i may have to change how it's done, but i can't solve this one.
Add hardcoded numeric values to the form names so they match up in your processing page. Right now they are random:
<form action="" method="post">
<input type="checkbox" value="1" name="productid[1]">
<input type="text" value="16.95" name="listprice[1]">
<input type="checkbox" value="2" name="productid[2]">
<input type="text" value="17.67" name="listprice[2]">
<input type="checkbox" value="3" name="productid[3]">
<input type="text" value="18.81" name="listprice[3]">
<input type="checkbox" value="4" name="productid[4]">
<input type="text" value="19.84" name="listprice[4]">
<input type="checkbox" value="5" name="productid[5]">
<input type="text" value="16.85" name="listprice[5]">
<input type="submit" value="Save List" name="savelist">
</form>
Now you know if the user checks product[4], it really is product[4]. When you leave your keys blank like productid[], that is just an anonymous spot in the array and makes it impossible to track when dealing with checkboxes that have no value unless checked.
If you check off productid[2] and productid[4] you know that the values in the listprice array are the values that go with what you have checked off:
Array
(
[listprice] => Array
(
[1] => 16.95
[2] => 17.67
[3] => 18.81
[4] => 19.84
[5] => 16.85
)
[productid] => Array
(
[2] => 2
[4] => 4
)
)
To access the values, loop through the productid but access the listprice:
foreach($_POST['productid'] as $key => $value){
echo $_POST['listprice'][$value].'<br />';
}
I have three inputs type text in an HTML page and a button which if clicked duplicate each text box (Javascript) making them 6.
<input type="text" name="category[]">
<input type="text" name="quantity[]">
<input type="text" name="amount[]">
<button>Add more</button>
Which generate same inputs again:
<input type="text" name="category[]">
<input type="text" name="quantity[]">
<input type="text" name="amount[]">
A piece of code in Cakephp I have been trying:
$data = $this->request->data;
foreach($data['category'] as $index => $value){
$this->ModelName->save($value);
}
Trying to get two rows inserted at once with quantity, category and amount as columns. But it is not inserting and not giving any error.
Is there a way I can achieve this?
Thanks.
I'm not sure how your model works in cakephp, but you should be able to get a complete grouping of data like:
foreach($data['category'] as $index => $value){
$category = $value
$quantity = $data['quantity'][$index];
$amount = $data['amount'][$index];
// use the above 3 variables however you need to to persist the model
//$this->ModelName->save($value);
}
On a side note, you may want to consider reordering your html inputs to be like:
<input type="text" name="item[0][category]">
<input type="text" name="item[0][quantity]">
<input type="text" name="item[0][amount]">
And then maintain the next index, incrementing the numeric index of item for each additional group
This will allow you to iterate like:
foreach($data['item'] as $index => $group){
//$group['category'];
//$group['quantity'];
//$group['amount'];
}
Multiple input fields like
<input type="text" name="row1[]" id="date1">
<input type="text" name="row1[]" id="amount1">
<input type="text" name="row1[]" id="name1">
<input type="text" name="row1[]" id="document1">
Want to check if number of characters in certain fields (not all fields) is at least 1 (in the example do not want to check number of characters in id="document1". Now using this code
if ( (strlen($_POST['row1'][0]) >= 1) or (strlen($_POST['row1'][1]) >= 1) or (strlen($_POST['row1'][2]) >= 1)) ) {
}
Is it possible to shorten code to something like (this is not working code)?
if ( (strlen($_POST['row1']??want_to_check??) >= 1) ) {
}
And input something like (also not working and not real)
<input type="text" name="row1[]??want_to_check??" id="date1">
<input type="text" name="row1[]??want_to_check??" id="amount1">
<input type="text" name="row1[]??want_to_check??" id="name1">
<input type="text" name="row1[]??do_not_want_to_check??" id="document1">
Check number of characters only in certain fields (not all fields)
a tricky shorthand
if (count(array_filter($_POST['row1'],'trim')) != count($_POST['row1'])) {
//not all fields are set
}
but in general, if you see a repetition - you can be sure that a loop can be used. Look:
if ( (
strlen($_POST['row1'][0]) >= 1)
or (strlen($_POST['row1'][1]) >= 1)
or (strlen($_POST['row1'][2]) >= 1)) )
three repeated operators with only counter changing. I am sure you can write a loop for this. Can't you?
Update
Make sensible field names
<input type="text" name="row1[date]" id="date1">
<input type="text" name="row1[amount]" id="amount1">
<input type="text" name="row1[name]" id="name1">
<input type="text" name="row1[document]" id="document1">
Create an array with required field names
$req = array('date1','amount1','name1');
Check your input against this array in a loop
Something like this might work
function checkLength($inputs) {
foreach($inputs as $input) {
if(strlen($input) < 1) return false;
}
return true;
}
if(checkLength(array($_POST['input1'], $_POST['input2'], $_POST['input3']))) {
}
You can loop through fields using foreach
$field_set = false;
if(!empty($_POST['row1'])){
foreach($_POST['row1'] as $key => $row){
//Your code here
if(trim($_POST['row1']))
$field_set = true;
}
}
This will work if you have dynamic number of fields.
Basically what I want my program to do is to ask the user how many numbers they want to enter. Once the value is submitted, the program will take the value and create this amount of textboxes. Each textbox will take a number and once submitted, it should take all the numbers (excluding the initial text box) and store it into an array or something so the mean can be calculated.
I've been able to get as far as creating x amount of textboxes but cannot find a way to submit these values.
<html>
<body>
<form action="means.php" method = "get">
Enter sample size: <input type = "number" name = "size" <br>
<input type = "submit">
<?php
if ( isset($_GET["size"] ) )
{
$size = $_GET["size"];
$count = 1;
while ($count <= $size)
{
echo '<br><input type=\"text\" name=\"textbox".$count."\" />';
$count++;
}
}
?>
</form>
</html>
</body>
I assume the problem is that the textboxes created are being echoed so the name "textbox.$count." cannot be used to obtain the numbers?
Any help would be greatly appreciated. Thanks in advance!
Just use PHP's array notation for form field names:
<input type="text" name="textbox[]" />
^^---force array mode
which will produce an array in $_POST['textbox'], one element for each textbox which was submitted with the textbox[] name.
e.g:
<input type="text" name="textbox[]" value="1" />
<input type="text" name="textbox[]" value="foo" />
<input type="text" name="textbox[]" value="banana" />
produces
$_POST = array(
'textbox' => array )
0 => 1,
1 => 'foo',
2 = > 'banana'
)
)
Your problem is that you're using single-quoted strings ('), meaning that
$var = 'foo';
echo '$var' // outputs $, v, a, r
echo "$var" // outputs f, o ,o