PHP - Removing Square Shaped Hidden Characters

In <div id="chart_rt">%3$s</div> below, it is populated with a string that always begins with a number followed by a colon (from 1: to 25:). I see that ltrim removes characters from the beginning of a string but I don't see how to compensate for the extra character in 10: through 25:


function wp_rss( $url, $num_items = -1 ) {
    if ( $rss = fetch_rss( $url ) ) {
        echo '<div id="charts">';

        if ( $num_items !== -1 ) {
            $rss->items = array_slice( $rss->items, 0, $num_items );
        }
//start count
$i = 1;
        foreach ( (array) $rss->items as $item ) {
            printf(
                '<div id="chart_lt">'.$i.'</div><div id="chart_rt">%3$s</div>',
                esc_url( $item['link'] ),
                esc_attr( strip_tags( $item['description'] ) ),
                htmlentities( $item['title'] )
            );
//increment
$i++;
        }

        echo '</div>';
    } else {
        _e( 'An error has occurred, which probably means the feed is down. Try again later.' );
    }
}

Hi all,

I have an array of data. I am looping through this data to generate a CSV file. However, if there are commas in any of the elements then this will throw out the structure of the CSV file.

My question is, how do I loop through the array before I use it to strip out any commas and replace with a space?

Thanks for your help.

I have a string of mixed Japanese or Chinese and Western characters and I would really like to leave the western characters and remove the others. Is there any way to detect which UTF-8 characters are Japanese/Chinese and to remove them?

I have tried to use this which I found on another thread but my version of PHP (5.3) will not allow the /u in the following
Code: [Select]
echo "<BR>".preg_replace('/[^\u4E00-\u9FFF]+/', '', $string);
I have tried using various combinations of /p (these, plus others)
Code: [Select]
echo "<BR>".preg_replace('/\p{Bopomofo}+/u', '', $string);
echo "<BR>".preg_replace('/\p{Hiragana}+/u', '', $string);
and the /x{} option tells me the numbers are to large
Code: [Select]
echo "<BR>".preg_replace('/[^\x{4E00}-\x{9FFF}]+/', '', $string);
My string for this example is this but any combination of western and Japanese/Chinese characters are possible in the title.
2011.12.06 19:00-20:00 / ふくいちライブカメラ (Live Fukushima Nuclear Plant Cam) | Uploaded: 06 Dec 2011

Thanks for any help.

I am returning the following through JSON:

Code: [Select]
$this->view->lead_query=$lead_query->fetchALL();
header('OK', true, 200);
header('Content-type: application/json');
echo json_encode($this->view->lead_query);
I am getting the results in this format:
[{"client_name":"Steve Harris","state":"TX"}]

Now if the above output was displayed without the square brackets [] I can populate the values in my form correctly.
Is there a way i can return the output without the square brackets?

This is really strange and throwing me for a loop.  I suspect there's a config setting somewhere in my PHP setup on my server which I am missing...

I have a PHP script that renders a vector drawing (as a series of lines/points) into a png image.
When I'm testing the script on my local machine (XAMPP + OSX) everything works great.  When the script runs on my host (hostgator) the imagefilledellipse() function renders as a square instead of a circle.  Screenshots below.  Try the server version for yourself at http://sundrynotes.com/alpha/ (press "create new note" in the lower right then long-press on the note and select the "whiteboard" option, draw, then press "accept").

Hello,

I'm trying to calculate the square root of X values in an array minus the average of the array, but the first half of the values are negative, so I'm using the abs(); function to change them to positives first, but I'm still getting "NAN" as the result for the negative values that 'should' be positive.
        $x = array(7,3,4,6,4,2,7);
        $sqrt = true;
        $x = sort($x);
        $mean = 4.71; // average
        $XminA = array();
        foreach($x as $val) {
            ($sqrt == true) ? $XminA[] = round(sqrt(abs($val) - $mean),2) : $XminA[] = round($val - $mean,2);
        }
        echo "<pre>";
        print_r($XminA);
        echo "</pre>";

and my result is...
Quote

[XminA] => Array
        (
            => NAN [1] => NAN
            [2] => NAN
            [3] => NAN
            [4] => 1.14
            [5] => 1.51
            [6] => 1.51
        )

Not sure what I'm doing wrong, any help is appreciated. Thank you!

Kind Regards,
Ace

EDIT: stupid mistake, need it to the power of 2 not square root. Using the wrong function sorry:
 ($sqrt == true) ? $XminA[] = round(pow((abs($val) - $mean),2) : $XminA[] = round($val - $mean,2); // pow() not sqrt()
Quote

[XminA] => Array
        (
            => 7.34 [1] => 2.92
            [2] => 0.5
            [3] => 0.5
            [4] => 1.66
            [5] => 5.24
            [6] => 5.24
        )

Hi, I have just created an algorithm and could this be the greatest algorithm invented for calculating square roots? Perhaps the answer is yes with 100% accuracy unlike some algorithms that round the last digit up. Below is the algorithm I have created and I used php. Also this algorithm can easily be imported into any language with any bitrate and is very scalable unlike some of the standard built in square root algorithms for some interpreters (all of the ones tested so far). Now below is the code with it in both the form of a class and the form of a function.

You may notice that the function name is funny but it is tatically named that way so that the string length of the function name is the same as the sqrt() function so you don't get qwerky results when comparing the two.

<?php
class sqrt {
    public $value;
    function __construct($in) {
    $tmp = (int) $in;
    $tmpp = ($tmp/2);
    for ($i=1;($i*$i)<=$tmp;$i*=2) {}
    $i/=2;
    for (;($i*$i)<=$tmp;$i++) {}
    $i--;
    $k=$i;
    $i++;
    if (($i*$i)>$tmp || ($i*$i)<$tmp) {
        for ($j=1;($i*$i)>=$tmp;$j/=2,$i=($j+$k)) {}
        
        $v=strlen((string)$j);
        $m=1/pow(10,$v);
        for (;($i*$i)<=$tmp;$j+=$m,$i=($j+$k)) {}
        $j-=($m);
        $i=$j+$k;
        
        if (($i*$i)>$tmp || ($i*$i)<$tmp) {
        //$w = (strlen((string)pow(2,32))+1);
        //$w = same number as below
        $w = 11; //32 bit
        $q=$m;
        for ($n=$v+1;$n<$w;$n++) {
            $m=1/pow(10,$n);
            $p=pow(10,(($n-$v)+1));
            for ($o=0;$o<$p && ($i*$i)<=$tmp;$j+=$m,$i=($j+$k),$o++) {}
            $j-=$m;
            $i=($j+$k);
            }
        }
    }
    echo $i;
    $this->value = $i;
    return $this->value;
    }
    
}
    function mysq($in) {
        $tmp = (int) $in;
        $tmpp = ($tmp/2);
        for ($i=1;($i*$i)<=$tmp;$i*=2) {}
        $i/=2;
        for (;($i*$i)<=$tmp;$i++) {}
        $i--;
        $k=$i;
        $i++;
        if (($i*$i)>$tmp || ($i*$i)<$tmp) {
            for ($j=1;($i*$i)>=$tmp;$j/=2,$i=($j+$k)) {}
            
            $v=strlen((string)$j);
            $m=1/pow(10,$v);
            for (;($i*$i)<=$tmp;$j+=$m,$i=($j+$k)) {}
            $j-=($m);
            $i=$j+$k;
            
            if (($i*$i)>$tmp || ($i*$i)<$tmp) {
            //$w = (strlen((string)pow(2,32))+1);
            //$w = same number as below
            $w = 11; //32 bit
            $q=$m;
            for ($n=$v+1;$n<$w;$n++) {
                $m=1/pow(10,$n);
                $p=pow(10,(($n-$v)+1));
                for ($o=0;$o<$p && ($i*$i)<=$tmp;$j+=$m,$i=($j+$k),$o++) {}
                $j-=$m;
                $i=($j+$k);
                }
            }
        }
        return $i;
    }
    
$s = microtime(true);
mysq(128);
$e = microtime(true);

$a=($e-$s);
unset($e,$s);

sleep(1);

$s = microtime(true);
sqrt(128);
$e = microtime(true);
echo 'mysq time &#38;#160;&#38;#160;='.$a.'<br>';
echo 'mysq result='.mysq(128).'<br>';
echo 'sqrt time&#38;#160;&#38;#160;='.($e-$s).'<br>';
echo 'sqrt result='.sqrt(128).'<br>';
echo 'The mysq function is '.bcdiv(substr(($e-$s),0,11),$a,0).' times faster for this calculation.<br>';

I am trying to work on a code for php where you first have a form that asks the user to input a message then input a color. When they click the submit button it takes them to the output page.  It should take their message and output it into boxes in a square. And the background should turn the color that they types in.

Hey guys, im using UNIX time and trying to figure out how to remove the leading 0 when it shows the hour. "07:06 am" to make it read "7:06 am"

manual says i need to use %i with strftime. So I guess Im suppose to be removing the zero before the date format? which is why strftime isnt working after the date function. Or is there a way to do this in the date function.

                   $time = 1327493219;

date_default_timezone_set('UTC');

            $user_offset = date('h:i a  M/d', $time);

echo "<td>". strftime("%l",$user_offset) ."</td>"; 

Hi all,

I am new to PHP and MySQL and I am expierencing an issue which i need help with. I am creating a pupil record system for an assignment in Uni. we have been given some sample code and we have to build onto this and finish the system.

I have created an add a student page and when the student is added I want to move to the next page and then display the record that has been added (see image below)



Also see code below

Code: [Select]
<?php
print "<H2>Thank you, <i>";
print $_POST['firstname'];
print "&nbsp;";
print $_POST[ 'surname'];
print "</i> has been sucessfully added to the system.</H2>";
print "<a href=\"add_student.php\"><h4>Add Another Student</h4></a>";
 
function doquery($query) {

$db = "prs";
$link = mysql_connect("localhost","..........","........")
     or die("Could not connect to server! Error: ".mysql_error());
  
mysql_select_db($db,$link)
     or die("Could not select $db! Error: ".mysql_error());
   $result = mysql_query($query,$link)
     or $result = "Query Error!<p>Query: $query<p>Error: ".mysql_error();
   mysql_close($link);
  return($result);
}
  
  $firstname="'".$_POST['firstname']."'";
  $surname="'".$_POST['surname']."'";
  $address1="'".$_POST['address1']."'";
  $address2="'".$_POST['address2']."'";
  $town="'".$_POST['town']."'";
  $county="'".$_POST['county']."'";
  $postcode="'".$_POST['postcode']."'";
  $phone="'".$_POST['phone']."'";
  $email="'".$_POST['email']."'";
  $class_set="'".$_POST['class_set']."'";
  $query = "SELECT MAX(upn) + 1 as upn FROM students";
  $result = doquery($query); 
  $row = mysql_fetch_array($result);
  
  $upn = $row['upn'];
      
  $query = "INSERT INTO students (upn, firstname, surname, address1, address2, town, county, postcode, phone, email, class_set) VALUES ($upn, $firstname, $surname, $address1, $address2, $town, $county, $postcode, $phone, $email, $class_set)";
  doquery($query);
  
     echo 
    "<table width=\"350px\" border=\"1\" cellspacing=\"0\" cellpadding=\"5\" bordercolor=\"#de5f57\" align=\"center\">
  <tr>
    <td colspan=\"2\"><h3>Recorded Added</h3></td>
    </tr>
  <tr>
    <td width=\"150px\" class=\"form_labels\">Student Number</td>
    <td width=\"300px\" class=\"table_data\">".$upn."</td>
  </tr>
  <tr>
    <td class=\"form_labels\">First Name</td>
    <td class=\"table_data\">".$firstname."</td>
  </tr>
  <tr>
    <td class=\"form_labels\">Surname</td>
    <td class=\"table_data\">".$surname."</td>
  </tr>
  <tr>
    <td class=\"form_labels\">Address 1</td>
    <td class=\"table_data\">".$address1."</td>
  </tr>
  <tr>
    <td class=\"form_labels\">Address 2</td>
    <td class=\"table_data\">".$address2."</td>
  </tr>
  <tr>
    <td class=\"form_labels\">Town</td>
    <td class=\"table_data\">".$town."</td>
  </tr>
  <tr>
    <td class=\"form_labels\">County</td>
    <td class=\"table_data\">".$county."</td>
  </tr>
  <tr>
    <td class=\"form_labels\">Postcode</td>
    <td class=\"table_data\">".$postcode."</td>
  </tr>
  <tr>
    <td class=\"form_labels\">Phone Number</td>
    <td class=\"table_data\">".$phone."</td>
  </tr>
  <tr>
    <td class=\"form_labels\">Email</td>
    <td class=\"table_data\">".$email."</td>
  </tr>
  <tr>
    <td class=\"form_labels\">Class</td>
    <td class=\"table_data\">".$class_set."</td>
  </tr>
</table>";
  
?>

Hey again guys,

i am building a site admin page and i want to do a php script with will show the heading and the date of my news database into a table, and on the right or left side of each row i want to put 2 small icons one which will remove the specific record and one which will open a new small window with the whole record viewing.

any idears?

Hi

I want this URL:

php.net/manual/en/function.explode.php

to become

php.net

using php ..

I tried with the explode fuction but couldnt get it to work ...
list ($finalurl, $blabla) = explode('/', $url);

Anyone have any tips?

Thanks in advance