I want join array elements with a string (ex:-), i tried it with implode, but it don't work in my code.
How can fix it?
PHP:
<?php
$count = 1;
$ttttt = json_decode('["110,2"]');
$nnnnn = array("110","1","2");
$fffff = array('name','day','last');
$Rtp = str_replace($nnnnn, $fffff, $ttttt, $count);
echo implode(" - ", $Rtp); // This output is as: name,last
?>
DEMO: http://codepad.viper-7.com/ZNiBWy
You JSON is not valid the way you are expecting it, it generates only one value 110,2.
Change it to ["110","2"] and your implode should be ok.
You have an array $ttttt = array(110, 2) .
You then replace all values in this array as follows 110 -> name, 2 -> last and 1 -> day, using str_replace.
So (110, 2) becomes ("name", "last")
Related
I am trying to get dir name from my file path: Currently below is my output:
Array
(
[path] => \documentLibrary\work\marketingProcess\BusinessMarketing\Design\Images\02_Product_Images\04_SHORT-RANGE\NINA\01_NINA-B1\source_WEB
)
and I want to get second last name which is (01_NINA-B1). What I am trying is:
echo "<pre>".print_r(dirname($results),true)."</pre>"; die;
when I add dirname above it displays nothing. What can I try next?
$query = db_select('network_drive','networkd');
$query
->fields('networkd', array('path'))
->condition('ndid',$networkdriveid,'=')
->orderBy('networkd.ndid');
$results = $query->execute();
echo "<pre>".print_r(dirname($results['path']),true)."</pre>"; die;
This looks like a plain string operation:
split the string
get the desired element
Maybe like this:
$s = '/documentLibrary/work/marketingProcess/BusinessMarketing/Design/Images/02_Product_Images/04_SHORT-RANGE/NINA/01_NINA-B1/source_WEB';
$a = explode(DIRECTORY_SEPARATOR, dirname($s)); //removes source_WEB and splits the string
echo array_pop($a); //gets the last element '01_NINA-B1'
Demo
Is this drupal? from my research I found out that db_select is a drupal function.
Can you try this one? it will attempt to explode the path string and find the second last element, if none is found it will return "N/A"
$query = db_select('network_drive','networkd');
$query
->fields('networkd', array('path'))
->condition('ndid',$networkdriveid,'=')
->orderBy('networkd.ndid');
$results = $query->execute();
foreach($results as $result){
$array = explode("\\", $result->path);
echo isset($array[count($array) - 2]) ? $array[count($array) - 2] : "N/A";
}
My main motive is to remove the comma ',' from the last value of the array.
$Followingcount = mysqli_query($con,"SELECT * from followers where follower_id = '$idnow'");
if (mysqli_num_rows($Followingcount) > 0) {
while ($ids = mysqli_fetch_assoc($Followingcount)) {
$followedids = $ids['acc_id'].',';
$array = array($followedids);
$arraystr = implode("','",$array);
}}
If I echo $followerdids the result comes like this with commas like:
5, 7, 8,
To remove the comma at the last value I tried to place the values inside an array and then I imploded it.
When I echo $arraystr it still contains the comma at the last value.
All you need is:
$followedIds = [];
$followingCount = mysqli_query($con,"SELECT * from followers where follower_id = '$idnow'");
while ($ids = mysqli_fetch_assoc($followingCount )) {
$followedIds[] = $ids['acc_id'];
}
echo implode(',', $followedIds);
...and take care of SQL Injection
The solution to your problem is quite simple. There is a function called rtrim(), which removes all characters on the right side.
$followedids = rtrim($followedids, ',');
There is also a trim() function, which does the same on both sides, and ltrim() which does it for the left side.
You can use rtrim to remove the last comma after the while loop.
$followedids = rtrim($followedids, ',');
You could use the substr-function (more information here)
The last parameter is the length of the substring you want, but you can also use negative values, which means "remove this many characters", in your case: 1.
In your case:
$followedids = substr($followedids, 0,-1);
My query generates a result set of UID values which looks like:
855FM21
855FM22
etc
I want to isolate the last number from the UID which it can be done by splitting the string.
How to split this string after the substring "FM"?
To split this string after the sub string "FM", use explode with delimiter as FM. Do like
$uid = "855FM22";
$split = explode("FM",$uid);
var_dump($split[1]);
You can use the explode() method.
<?php
$UID = "855FM21";
$stringParts = explode("FM", $UID);
$firstPart = $stringParts[0]; // 855
$secondPart = $stringParts[1]; // 21
?>
use explode function it returns array. to get the last index use echo $array[count($array) - 1];
<?php
$str = "123FM23";
$array = explode("FM",$str);
echo $array[count($array) - 1];
?>
For it,please use the explode function of php.
$UID = "855FM21";
$splitToArray = explode("FM",$UID);
print_r($splitToArray[1]);
Have you tried the explode function of php?
http://php.net/manual/en/function.explode.php
As a matter of best practice, never ask for more from your mysql query than you actually intend to use. The act of splitting the uid can be done in the query itself -- and that's where I'd probably do it.
SELECT SUBSTRING_INDEX(uid, 'FM', -1) AS last_number FROM `your_tablename`
If you need to explode, then be practice would indicate that the third parameter of explode() should set to 2. This way, the function doesn't waste any extra effort looking for more occurrences of FM.
echo explode('FM', $uid, 2)[1]; // 21
If you want to use php to isolate the trailing number in the uid, but don't want explode() for some reason, here are some wackier / less efficient techniques:
$uid = '855FM21';
echo strtok($uid, 'FM') ? strtok('FM') : ''; // 21
echo preg_replace('~.*FM~', '', $uid); // 21
echo ltrim(ltrim($uid, '0..9'), 'MF'); // 21
$uid = '123FM456';
$ArrUid = split( $uid, 'FM' );
if( count( $ArrUid ) > 1 ){
//is_numeric check ?!
$lastNumbers = $ArrUid[1];
}
else{
//no more numbers after FM
}
You can also use regular expressions to extract the last numbers!
a simple example
$uid = '1234FM56';
preg_match( '/[0-9]+fm([0-9]+)/i', $uid, $arr );
print_r($arr); //the number is on index 1 in $arr -> $arr[1]
I am creating lines of text to be consumed by another layer in my application. The lines are:
['Jun 13',529],
['Jul 13',550],
['Aug 13',1005],
['Sep 13',1021],
['Oct 13',1027],
What is the fastest/easiest way to remove the trailing comma from the last line of text?
I'm expecting something like this:
['Jun 13',529],
['Jul 13',550],
['Aug 13',1005],
['Sep 13',1021],
['Oct 13',1027]
Actual Code:
$i = 0;
while($graph_data = $con->db_fetch_array($graph_data_rs))
{
$year = $graph_data['year'];
$month = $graph_data['month'];
$count = $graph_data['count'];
$total_count = $graph_data['total_count'];
// for get last 2 digits of year
$shortYear = substr($year, -2, 2);
// for get month name in Jan,Feb format
$timestamp = mktime(0, 0, 0, $month, 1);
$monthName = date('M', $timestamp );
$data1 = "['".$monthName.' '.$shortYear."',".$total_count."],";
$i++;
}
If you have that array in a variable and want a string, you can use implode to get a string separated by a glue char.
If you already have an string, you can use rtrim to remove the last char to the right of the string.
If you have an array, where the value is a string ['Oct 13',1027] (ending in a comma), you have the same options above and:
You can use array_walk with some of the mentioned functions
You can get the last element, and use rtrim on it like the code below:
Example of code using rtrim on a array of strings:
<?php
$values = array("['Oct 13',1027],", "['Oct 13',1027],");
$lastIndex = count($values)-1;
$lastValue = $values[$lastIndex];
$values[$lastIndex] = rtrim($lastValue, ',');
<?php
$arr = array(
"['Jun 13',529],",
"['Jul 13',550],"
);
$arr[] = rtrim(array_pop($arr), ', \t\n\r');
print_r($arr);
// output:
// Array
// (
// [0] => ['Jun 13',529],
// [1] => ['Jul 13',550]
// )
Make it an actual array, and implode. Not really sure what is is going to be (if json:you can do even better and not make the values themselves fake-arrays, but this is left as an exersize to the reader).
$yourData = array();
while(yourloop){
//probaby something like: $yourData = array($monthName=>$total_count);
$yourData[] = "['".$monthName.' '.$shortYear."',".$total_count."]";
}
//now you have an actual array with that data, instead of a fake-array that's a string.
//recreate your array like so:
$data1 = implode(','$yourData);
//or use json_encode.
Something similar to #srain but using array_push.
$values = array("['Oct 13',1027],", "['Oct 13',1027],");
$last = array_pop($values); //pop last element
array_push( $values, rtrim($last, ',') ); //push it by removing comma
var_dump($values);
//output
/*
array
0 => string '['Oct 13',1027],' (length=16)
1 => string '['Oct 13',1027]' (length=15)
*/
#ElonThan was right and so was #BenFortune. This is an XY Problem, and none of the other answers are giving you the best advice -- "Never craft your own json string manually".
You think you just need to remove the final comma from your textual output so that it creates something that javascript can parse as an indexed array of indexed arrays.
What you should be doing is creating a multidimensional array then converting that data into a json string. PHP has a native function that does exactly this AND it guarantees that you will have a valid json string (because it will escape characters as needed).
I'll demonstrate how to adjust your script based on your while() loop.
$result = [];
while ($row = $con->db_fetch_array($graph_data_rs)) {
$result[] = [
date('M y', strtotime($row['year'] . '-' . $row['month'])),
$row['total_count']
];
}
echo json_encode($result, JSON_PRETTY_PRINT);
Here is an online demo that re-creates your query's result set as an input array, then replicates the loop and result generation. https://3v4l.org/cG66l
Then all you have to do is echo that string into your rendered html document's javascript where required.
I've been searching and searching and can't find anything that works, but this is what I want to do.
This code:
try{
$timeout = 2;
$scraper = new udptscraper($timeout);
$ret = $scraper->scrape('udp://tracker.openbittorrent.com:80',array('0D7EA7F06E07F56780D733F18F46DDBB826DCB65'));
print_r($ret);
}catch(ScraperException $e){
echo('Error: ' . $e->getMessage() . "<br />\n");
echo('Connection error: ' . ($e->isConnectionError() ? 'yes' : 'no') . "<br />\n");
}
Outputs this:
Array ( [0D7EA7F06E07F56780D733F18F46DDBB826DCB65] => Array ( [seeders] => 148 [completed] => 10 [leechers] => 20 [infohash] => 0D7EA7F06E07F56780D733F18F46DDBB826DCB65 ) )
And I want that seeder count into a string such as $seeds. How would I go about doing this?
Something like this?
$seeds = $ret['0D7EA7F06E07F56780D733F18F46DDBB826DCB65']['seeders'];
you can user strval() to convert a number to a string.
$string = strval($number);
or you can cast it into a string:
$string = (string)$number;
in your context that would be:
$string = strval($ret['0D7EA7F06E07F56780D733F18F46DDBB826DCB65']['seeders']);
However that odd string is also the first index of the array so you could also do it like this:
$string = strval($ret[0]['seeders']);
or if you want ot use only indexes ('seeders' is also the first index of the second array):
$string = strval($ret[0][0]);
if you just want the number then it's easy too:
$num = $ret[0][0];
It's not clear if you're looking to assign the array value(s?) as a separate variable(s?) or just to cast it into a string. Here's a nice way to accomplish all the above options, by assigning each array key as a separate variable with the matching array value:
$ret_vars = array_pop($ret);
foreach ($ret_vars as $variable_name=>$variable_value) :
${$variable_name} = (string)$variable_value;
endforeach;
In your original example, this would end up populating $seeders, $completed, $leechers and $infohash with their matching string values. Of course, make sure these variable names are not used/needed elsewhere in the code. If that's the case, simply add some sort of unique prefix to the ${} construct, like ${'ret_'.$variable_name}