I have a form to edit the entrys in the database. With this the staff from my site can change every entry of an movie. It works percetly expect one little thing: It's also possible to change every episode title by iteselfs, and because every movie can have other count of episode, the php has to handle with it. It's working but not the way I want, my code I'm using only take the last entry and save it to the first episode from the movie.
Here is my code.
for ($e = 0; $e < count($_POST["episode"]); $e++) {
$con->query("UPDATE anime_episode SET ep_title = '".$_POST['episode']."' WHERE ep_nr = $e AND ani_id = $a");
}
There can only be one $_POST["episode"]. PHP will group all of the entries into that one variable so count will always return 1. You should try parsing $_POST["episode"] into an array or something first and then counting those elements.
Related
I have just discovered you can get pagination results through the api by passing in the page parameter like so:
$projects = $client->get('projects/147/time-records?page=3')->getJson();
Is there a way of knowing how many time records a project has so I know how many times I need to paginate?
Alternatively, how would I go about retrieving several pages worth of data - i'm struggling with the code!
I have created an issue on Github - will await a response.
For now, I do the following:
// Get all the projects
// Set the page number
$page = 1;
// Create an empty array
$project_records = array();
// Get the first page of results
$project_records_results = $client->get('projects?page=' . $page)->getJson();
// Merge the results with base array
$project_records = array_merge($project_records, $project_records_results);
// Get the next page of results,
// if it returns something merge with the base array and continue
while ($project_records_results = $client->get('projects?page=' . ++$page)->getJson()) {
$project_records = array_merge($project_records, $project_records_results);
}
Sure. All paginated results will include following headers:
X-Angie-PaginationCurrentPage - indicates current page
X-Angie-PaginationItemsPerPage - indicates number of items per page
X-Angie-PaginationTotalItems - indicates number of items in the entire data set.
When you get header values, simple:
$total_pages = ceil($total_items_header_value / $items_per_page_header_value);
will give you number of pages that are in the collection.
Alternative: You can iterate through pages (by starting with page GET parameter set to 1, and incrementing it) until you get an empty result (page with no records). Page that returns no records is the last page.
Please note, that the headers are now all lowercase (v1)!
So the answer above should be corrected.
To get them call:
$headers = $client->get($path)->getHeaders();
Working code example from /api/v1/:
$paginationCurrentPage = isset($headers['x-angie-paginationcurrentpage'][0]) ? $headers['x-angie-paginationcurrentpage'][0] : NULL;
$paginationItemsPerPage = isset($headers['x-angie-paginationitemsperpage'][0]) ? $headers['x-angie-paginationitemsperpage'][0] : NULL;
$paginationTotalItems = isset($headers['x-angie-paginationtotalitems'][0]) ? $headers['x-angie-paginationtotalitems'][0] : NULL;
there. I'm having a problem with creating arrays in certain conditions in php, i'll try to explain. Here's my code:
for ($i = 1; $i < $tamanho_array_afundamento; $i++) {
if ($array_afundamento[$i] - $array_afundamento[$i - 1] > 1) {
$a = $array_afundamento[$i - 1];
$con->query('CREATE TABLE IF NOT EXISTS afunda_$a
SELECT (L1_forma_tensao_max + L1_forma_tensao_min)/2 as L1_forma_tensao, (L2_forma_tensao_max + L2_forma_tensao_min)/2 as L2_forma_tensao, (L3_forma_tensao_max + L3_forma_tensao_min)/2 as L3_forma_tensao
FROM afundamento
WHERE id > $prevNum AND id < $a');
$tabelas_intervalos_afunda1 = ($con->query("SELECT * FROM afunda_$a");
while ($row = $tabelas_intervalos_afunda->fetch(PDO::FETCH_ASSOC)) {
$array_forma_onda_fase1_afund[] = $row['L1_forma_tensao'];
$array_forma_onda_fase2_afund[] = $row['L2_forma_tensao'];
$array_forma_onda_fase3_afund[] = $row['L3_forma_tensao'];
}
$prevNum = $a;
}
}
So as u can see, i have an if statement in a for loop, what i'm wishing to do is to create
one set of:
{
$array_forma_onda_fase1_afund[] = $row['L1_forma_tensao'];
$array_forma_onda_fase2_afund[] = $row['L2_forma_tensao'];
$array_forma_onda_fase3_afund[] = $row['L3_forma_tensao'];
}
every time the if statement is runned. I was trying replacing this in the original code:
{
$array_forma_onda_fase1_afund_$a[] = $row['L1_forma_tensao'];
$array_forma_onda_fase2_afund_$a[] = $row['L2_forma_tensao'];
$array_forma_onda_fase3_afund_$a[] = $row['L3_forma_tensao'];
}
so as $a is changed everytime the if statement is accessed, i could have a different set of these arrays for everytime the if statement is accessed, but php doesn't accept this and i wouldn't have a very good result, though if i can reach it i would be pleased.
But my goal is to get:
{
$array_forma_onda_fase1_afund_1[] = $row['L1_forma_tensao'];
$array_forma_onda_fase2_afund_1[] = $row['L2_forma_tensao'];
$array_forma_onda_fase3_afund_1[] = $row['L3_forma_tensao'];
}
{
$array_forma_onda_fase1_afund_2[] = $row['L1_forma_tensao'];
$array_forma_onda_fase2_afund_2[] = $row['L2_forma_tensao'];
$array_forma_onda_fase3_afund_2[] = $row['L3_forma_tensao'];
}
...
where the last number represents the array retrieved for the n-th time the if statement runned. Does someone have a tip for it?
Thanks in advance! Would appreciate any help.
EDIT
As asked, my real world terms is as follows:
I have a table from which i need to take all the data that is inside a given interval. BUT, there's a problem, my data is a sine function whose amplitude may change indefinite times (the data bank is entered by the user) and, when the amplitude goes inside that interval, i need to make some operations like getting the least value achieved while the data was inside that interval and some other parameters, for each interval separately, (That's why i created all those tables.) and count how many times it happpened.
So, in order to make one of the operations, i need an array with the data for each time the databank entered by the user goes in that interval (given by the limits of the create query.).
If i were not clear, just tell me please!
EDIT 2
Here's the image of part of the table i'm working with:
http://postimg.org/image/5vegnk043/
so, when the sine gets inside the interval i need, it can be seen by the L1_RMS column, who accuses it, so it's when i need to get the interval data until it gets outside the interval. But it may happens as many times as this table entered by the user brings it on and we need to bear in mind that i need all the intervals separately to deal with the data of each one.
Physics uh?
You can do what you wanted with the arrays, it's not pretty, but it's possible.
You can dynamically name your arrays with the _$a in the end, Variables variables, such as:
${"array_forma_onda_fase3_afund_" . $a}[] = "fisica é medo";
I'm writing a script that calculates the total distance, in miles, traveled on a trip. It needs to calculate the total distance, and the distance between any midpoints. Right now it calculates the total distance fine. I am using drop-boxes, and have allowed to it accept up to 5 midpoints. Now, I may just be trying to make this more complicated than it needs to be but...
I'd like to be able to run the script even if three of the midpoint forms are left empty (which would just say "Select City" with a value of " " or null). Is there a way I can have the script run when the three fields of the form are left empty??
EDIT: Each 'index' or 'pont' is defined with a = " ";. I'm using a multidimentional array for the whole script and the 7 drop boxes start with a selected value of "Select City" which has an empty/null value. I just want to know how to run the form/script when two of the mid-point values/drop boxes are left with the initial value of "Select City".
Sorry, here is some of my code:
<?php
if (isset($_POST['Submit'])) {
$StartIndex = stripslashes($_POST['Start']);
$EndIndex = stripslashes($_POST['End']);
if (isset($Distances[$StartIndex][$EndIndex]))
echo "Total trip distance from $StartIndex to $EndIndex is". $Distances[$StartIndex][$EndIndex]." miles<br/>";
else
echo "Distance could not be calculated";
}
?>
This is where I'm stopped at...
<?php
if (isset($_POST['Submit'])) {
$Point1 = stripslashes($_POST['1']);
?>
^^the other four midpoints are the same, I have zero clue how to still run the form when only the start city, end city, and two mid-point cities are selected. I'd add the whole script but it very long with the multidimensional array
To see what my form looks like you can go to >> 131.118.95.215/users/mjswiontek0/project/city/citytocity.php
Just evaluate your test (e.g. empty($_POST["1"])) on every midpoint to find, if you want to include it into calculation.
See commented (very generic) example:
if (isset($_POST['Submit']))
{
// start with the start index
$PrevIndex = stripslashes($_POST['Start']);
$Point = 1;
$Distance = 0;
do
{
// do we have the N-th midpoint?
$HavePoint = !empty($_POST[$Point]);
// if not, use end point
$NextIndex = stripslashes($_POST[$HavePoint ? $Point : 'End']);
// add distance between the two midpoint to total
$Distance += $Distances[$PrevIndex][$NextIndex];
// make current point the previous point to the next iteration
$PrevIndex = $NextIndex;
// move to the next point for the next iteration
$Point++;
}
while ($HavePoint);
}
I'm having some problem understanding how to resolve this loop:
I'm developing a small scraper for myself and I'm trying to figure out how to loop within 2 methods until all the links are retrieved from the website.
I'm already retrieving the links from the first page but the problem is that I can't make a loop to verify the new links already extracted:
Here is my code:
$scrape->fetchlinks($url);//I scrape the links from the first page from a website
//for each one found I insert the url in the DB with status = "n"
foreach ($scrape->results as $result) {
if ($result) {
echo "$result \n";
$crawler->insertUrl($result);
//I select all the links with status = "n" to perform a scrape the stored links
$urlStatusNList = $crawler->selectUrlByStatus("n");
while (sizeof($urlStatusNList > 1)){
foreach($urlStatusNList as $sl){
$scrape->fetchlinks($sl->url); // I suppose it would retrieve all the new sublinks
$crawler->insertUrl($sl->url); // insert the sublinks in the db
$crawler->updateUrlByIdStatus($sl->id, "s"); //update the link scraped with status = "s", so I will not check these links again
//here I would like to return the loop for each new link in the db with status='n' until the system can not retrieve more links and stops with the script execution
}
}
}
}
Any type of help is very welcome. Thanks in advance !
In pseudo-code you're looking for something like this
do
{
grab new links and add them to database
} while( select all not yet extracted from database > 0 )
Will keep going on and on without recursion...
I'd like to be able to use php search an array (or better yet, a column of a mysql table) for a particular string. However, my goal is for it to return the string it finds and the number of matching characters (in the right order) or some other way to see how reasonable the search results are, so then I can make use of that info to decide if I want to display the top result by default or give the user options of the top few.
I know I can do something like
$citysearch = mysql_query(" SELECT city FROM $table WHERE city LIKE '$city' ");
but I can't figure out a way to determine how accurate it is.
The goal would be:
a) find "Milwaukee" if the search term were "milwakee" or something similar.
b) if the search term were "west", return things like "West Bend" and "Westmont".
Anyone know a good way to do this?
You should check out full text searching in MySQL. Also check out Zend's port of the Apache Lucene project, Zend_Search_Lucene.
More searching led me to the Levenshtein distance and then to similar_text, which proved to be the best way to do this.
similar_text("input string", "match against this", $pct_accuracy);
compares the strings and then saves the accuracy as a variable. The Levenshtein distance determines how many delete, insert, or replace functions on a single character it would need to do to get from one string to the other, with an allowance for weighting each function differently (eg. you can make it cost more to replace a character than to delete a character). It's apparently faster but less accurate than similar_text. Other posts I've read elsewhere have mentioned that for strings of fewer than 10000 characters, there's no functional difference in speed.
I ended up using a modified version of something I found to make it work. This ends up saving the top 3 results (except in the case of an exact match).
$input = $_POST["searchcity"];
$accuracy = 0;
$runner1acc = 0;
$runner2acc = 0;
while ($cityarr = mysql_fetch_row($allcities)) {
$cityname = $cityarr[1];
$cityid = $cityarr[0];
$city = strtolower($cityname);
$diff = similar_text($input, $city, $tempacc);
// check for an exact match
if ($tempacc == '100') {
// closest word is this one (exact match)
$closest = $cityname;
$closestid = $cityid;
$accuracy = 100;
break;
}
if ($tempacc >= $accuracy) { // more accurate than current leader
$runner2 = $runner1;
$runner2id = $runner1id;
$runner2acc = $runner1acc;
$runner1 = $closest;
$runner1id = $closestid;
$runner1acc = $accuracy;
$closest = $cityname;
$closestid = $cityid;
$accuracy = $tempacc;
}
if (($tempacc < $accuracy)&&($tempacc >= $runner1acc)) { // new 2nd place
$runner2 = $runner1;
$runner2id = $runner1id;
$runner2acc = $runner1acc;
$runner1 = $cityname;
$runner1id = $cityid;
$runner1acc = $tempacc;
}
if (($tempacc < $runner1acc)&&($tempacc >= $runner2acc)) { // new 3rd place
$runner2 = $cityname;
$runner2id = $cityid;
$runner2acc = $tempacc;
}
}
echo "Input word: $input\n<BR>";
if ($accuracy == 100) {
echo "Exact match found: $closestid $closest\n";
} elseif ($accuracy > 70) { // for high accuracies, assumes that it's correct
echo "We think you meant $closestid $closest ($accuracy)\n";
} else {
echo "Did you mean:<BR>";
echo "$closestid $closest? ($accuracy)<BR>\n";
echo "$runner1id $runner1 ($runner1acc)<BR>\n";
echo "$runner2id $runner2 ($runner2acc)<BR>\n";
}
This can be very complicated, and I am not personally aware of any good 3rd party libraries although I'm sure they exist. Others may be able to suggest some canned solutions, though.
I have written something similar from scratch a few times in the past. If you go down that route, it is probably not something you'd want to do in PHP by itself as every query would involve getting all of the records and performing your calculations on them. It will almost certainly involve creating a set of index tables that meet your specifications.
For instance, you would have to come up with rules for how you imagine that "Milwaukee" could end up spelled "milwakee." My solution to this was to do vowel compression and duplication compression (not sure if these are actually search terms). So, milwaukee would be indexed as:
milwaukee
m_lw__k__
m_lw_k_
When the search query came in for "milwaukee", I would run the same process on the text input, and then run a search on the index table for:
SELECT cityId,
COUNT(*)
FROM myCityIndexTable
WHERE term IN ('milwaukee', 'm_lw__k__', 'm_lw_k_')
When the search query came in for "milwakee", I would run the same process on the text input, and then run a search on the index table for:
SELECT cityId,
COUNT(*)
FROM myCityIndexTable
WHERE term IN ('milwaukee', 'm_lw_k__', 'm_lw_k_')
In the case of Milwaukee (spelled correctly), it would return "3" for the count.
In the case of Milwakee (spelled incorrectly) ,it would return "2" for the count (since it would not match the m_lw__k__ pattern as it only had one vowel in the middle).
If you sort the results based on the count, you would end up meeting one of your rules, that "Milwaukee" would end up being sorted higher as a possible match than "Milwakee."
If you want to build this system in a generic way (as hinted by your use of $table in the query) then you'd probably need another mapping table somewhere in there to map your terms to the appropriate table.
I'm not suggesting this is the best (or even a good) way to go about this, just something I've done in the past that might prove useful to you if you plan to try and do this without a third party solution.
Most maddening result with LIKE is this one "%man" this will return all woman in file!
In case of listing perhaps a not too bad solution is to keep on shortening the searching needle. In your case a match will come up when your searching $ is as short as "milwa".