Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 5 years ago.
Improve this question
I have table on mysql like this:
insert into `city` (`ID`,`NAMES`) values
(1,'Białystok, Radom, Sandomierz'),
(2,'Olsztyn, Warka, Grójec, Poznań'),
(3,'Białowieża, Zakopane, Wrocław, Gdańsk, Sopot'),
(4,'Augustów, Kielce')
After select I would like to see a view, like:
A B C D.........Z - links to section
A
Augustów
B
Białystok
Białowieża
G
Gdańsk
Grójec
How do this in PHP?
I have tried with this PHP code.
You may help this.
$arr = array("Sky","Stackoverflow","Cloud", "Birds","Banana", "Rainbow", "Moon","Apple","Aeroplane","Ambulance");
sort($arr);
$last = '';
$concate = "<ul>";
foreach ($arr as $key => $val)
{
$first = substr($val,0,1);
if($first == $last)
{
$concate .= '<li>'.$val.'</li>';
}
else
{
$concate .= $first;
$concate .= '<li>'.$val.'</li>';
}
$last = $first;
}
$concate .= "</ul>";
echo $concate;
Related
Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 2 years ago.
Improve this question
I want split one group AS follow
splitGroups("11133355557777") ➞ ["111", "333", "5555", "7777"]
Anyone have idea then let me know
With php version 5 above this will work link to execute
Link to an example https://paiza.io/projects/qfRZ07OP3OviWCVsUbdFtQ
function splitGroups($str){
$arr = [];
$i=0;
$sub = '';
while($i!=strlen($str))
{
$sub .= $str[$i];
if ( strlen($str)-1 == $i || $str[$i] != $str[$i+1] ){
$arr[] = $sub;
$sub='';
}
$i++;
}
return $arr;
}
Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 2 years ago.
Improve this question
I need to obfuscate or cover an email address on PHP.
For this, i have the next code.
<td>
<p class="list-item-heading"><small><?= $row->email ?></small></p>
</td>
Where $row->email is
realname_x123#gmail.com
.
I need to show this as
r*al****_x*2*#gmail.com
I need to replace with * ALWAYS the same parts of the string, not randomly because it will be shown on a list, maximun of 5 or 6 characters visible.
Anytips? I've tried with strpos, and str_replace with no success.
EDIT:
IF this cannot be do. It will be usefull also, for example, to only leave 3 chars from the beggining.
rea***********#gmail.com
I've found a workaround that suits for me.
<?php
function hideEmail($email)
{
$mail_segments = explode("#", $email);
$mail_segments[0] = substr($mail_segments[0], 0, 1) . str_repeat("*", strlen($mail_segments[0]) - 2) . substr($mail_segments[0], -1);
$pos = strpos($mail_segments[1], '.');
$mail_segments[1] = substr($mail_segments[1], 0, 1) . str_repeat("*", strlen($mail_segments[1]) - $pos+1) . substr($mail_segments[1], $pos-1);
return implode("#", $mail_segments);
}
?>
function mailObfuscate($mail) {
//every second character replace with *
$mail = explode('#',$mail);
$array = str_split($mail[0]);
$control = 0;
$ret = '';
foreach ($array as $char) {
if ($control == 0) {$ret .= '*'; $control++;} else {$ret .= $char; $control=0;}
}
return $ret.'#'.$mail[1];
}
Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 2 years ago.
Improve this question
I need your help to get the position of duplicate or same elements in an array.
For example
$arr =[6,5,3,7,40,45,7,6,3,32,86,40,5,3,7,40];
Result
6 = 0,7
5 = 1,11
3 = 2,8
7 = 3,6,14
40 = 4,11,15
45 =5 and so on.
One simple approach:
<?php
$arr =[6,5,3,7,40,45,7,6,3,32,86,40,5,3,7,40];
$pos = array();
foreach($arr as $k => $v) {
$pos[$v][] = $k;
}
foreach($pos as $k => $v) {
echo $k."=".implode(',', $v)."<br>";
}
?>
Result:
6=0,7
5=1,12
3=2,8,13
7=3,6,14
40=4,11,15
45=5
32=9
86=10
Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 6 years ago.
Improve this question
I have this array`
<?php
$arr = [['name'=>'john','age'=>20,'sex'=>'m'],
['name'=>'maria','age'=>12,'sex'=>'f'],
['name'=>'nick','age'=>25,'sex'=>'m'],
['name'=>'jo','age'=>31,'sex'=>'f'],];
foreach ($arr as $persoana) {
foreach ($persoana as $id=>$value) {
if ($id == 'age') {
$sumvarsta = $sumvarsta + $value;
$n++;
}
}
}`?>
i need total average age (total average age seems to be working ok) , average age for women and average age for men.
How to calculate ?
thx.
<?php
$arr = [['name'=>'john','age'=>20,'sex'=>'m'],
['name'=>'maria','age'=>12,'sex'=>'f'],
['name'=>'nick','age'=>25,'sex'=>'m'],
['name'=>'jo','age'=>31,'sex'=>'f'],];
$womansum = 0;
$womancount = 0;
$mansum = 0;
$mancount = 0;
foreach ($arr as $persoana) {
if ($persoana['sex'] == 'm')
{
$mansum += $persoana['age'];
$mancount++;
} else {
$womansum += $persoana['age'];
$womancount++;
}
}
$manAverage = $mansum / $mancount;
$womanAverage = $womansum / $womancount;
$totalAverage = ($mansum + $womansum) / ($mancount + $womancount);
?>
Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 8 years ago.
Improve this question
Im trying to display 2 or more unique random results from a text file, How do I do that please?
But I need unique results and not 2 or more of the same.
Currently using this code, but it only returns 1 random result:
<?php
$text = file_get_contents('flatFileDB.txt');
$textArray = explode("\n", $text);
$randArrayIndexNum = array_rand($textArray);
$randPhrase = $textArray[$randArrayIndexNum];
?>
<?php echo $randPhrase ?>
I would use something like that
shuffle($textArray);
echo $textArray[0];
echo $textArray[1];
http://php.net/manual/tr/function.shuffle.php
You can give a shot to this also. Code is not tested. I am collecting the used into an array, and check, is that used before.
$text = file_get_contents('flatFileDB.txt');
$textArray = explode("\n", $text);
$used = array();
$countOfRandoms = 2;
$randoms = array();
$i = 1;
do {
if ($countOfRandoms == $i) {
break;
}
$randArrayIndexNum = array_rand($textArray);
if (in_array($randArrayIndexNum, $used)) {
continue;
}
$used[] = $randArrayIndexNum;
$random = $textArray[$randArrayIndexNum];
$i++;
} while (true);