How can I get alphabet like this?
So I got something like this:
$alphabet = ‘a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z’;
$alphabetArr = explode(‘,’, $alphabet);for ($i = 0; $i < count($alphabetArr; $i++) {
for ($k = 0; k < count($alphabetArr; $k++) {
echo $alphabetArr[$k];
}
// break line;
}
I can’t get letter b in second row as first character, and letter a as last character in second row? I would appreciate any help
I am a great believer in keeping things simple, which I admit does mean my code is sometimes longer and less intuitive than others.
For me this is a simple matter of 4 strings.
1 - Take your first string $one = ‘abcdefghijklmnopqrstuvwxyz’
2 - use substr() to create 2 new strings based on the first string so $two = the end right hand character and $three = the left 25 characters
3 - then add the 2 strings together so $four = $two.$three
4 - set $one = $4 and loop
So basically a loop that runs 26 times, splitting the string in two parts consisting of 25 and 1 character, add them together and do it again
I got bored … here ya go…
<?php
//alphabet split
$one='abcdefghijklmnopqrstuvwxyz';
$x = 1;
while($x <= 26) {
echo $one.'<br>';
$two=substr($one,-1);
$three=substr($one,0,25);
$one=$two.$three;
$x++;
}
Sorry ! just checked and realised I was doing it the wrong way. I was taking last letter and putting it at the beginning. You wanted to take first letter and put it at the end so I amended the code
<?php
//alphabet split
$one='abcdefghijklmnopqrstuvwxyz';
$x = 1;
while($x <= 26) {
echo $one.'<br>';
$two=substr($one,0,1);
$three=substr($one,1,25);
$one=$three.$two;
$x++;
}
Though to modify the poster’s original code (so that they can see they were on roughly the right track idea-wise), you could have done:
$alphabet = 'a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z';
$alphabetArr = explode(',', $alphabet);
for ($i = 0; $i < count($alphabetArr); $i++) {
for ($k = $i; $k < $i + count($alphabetArr); $k++) {
echo $alphabetArr[$k % count($alphabetArr)];
}
echo "<br>";
}
Yeah more applicable to his code, I agree. Thing is to be honest, I have always had a personal phobia of arrays, don’t know why, I just fear them, black magic voodoo - I am the same with preg - I need to embrace them I guess and stop avoiding them 
Wasn’t a criticism, for the record, just trying to point out to the OP that they weren’t far from the mark to begin with 
avoiding arrays is difficult, and they are very powerful. preg is a tool that gets overused/abused when simpler methods can do the job.
Never took it as a criticism my friend - it was a good point and I deliberately avoided the array solution because I don’t understand them. But I am going to take your code as a learning tool because now I have two different solutions to a known problem and I can cross reference and maybe start using arr, arrra, arrra, arrays - There I said it! 
You didn’t though, you just don’t know you’re using them
(my own interpretation of substr-under-the-hood)
function substr($string, $start, $length = PHP_INT_MAX) {
if(!is_string($string)) { throw TypeMismatch; }
if(!is_int($start)) { throw TypeMismatch; }
if(!is_int($length)) { throw TypeMismatch; }
$string = explode($string); //Hey look an array.
//Sanitize inputs.
if(count($string) < $start) { return false; }
elseif($start < 0) { $start = count($string)+$start; }
if($length === 0 || $length === FALSE || is_null($length)) { return ""; }
elseif(($start + $length) > count($string)) { $end = count($string); }
elseif($length < 0) { $end = count($string) + $length; }
else { $end = $start + $length }
//Compile output
$output = "";
for($i = $start; $i < $end; $i++) {
$output .= $string[$i];
}
return $output;
}
doooh !
A string is also ‘an array of characters’ for the purposes of indexing - $one[2] == ‘c’.
We’ll open your eyes slowly, but there’s arrays all around you, if you but look for them
Well, I guess it’s time… get ready for some array posts !!! 
Slight modification to @m_hutley’s example. By the way, what is this for?
$alphabetArr = range('a', 'z');
for ($i = 0; $i < count($alphabetArr); $i++) {
for ($k = $i; $k < $i + count($alphabetArr); $k++) {
echo $alphabetArr[$k % count($alphabetArr)];
}
echo "<br>";
}
In case you want a hard to read solution -
for($x=0,$alpha=range('a','z');$x<count($alpha);print implode($alpha).'<br>',$x++,$alpha[]=array_shift($alpha));With simple formatting, still a much cleaner solution.
Since the length of the $alpha array is a known constant, you could tighten up the code even more and eliminate the count function call.
for ($x = 0, $alpha = range('a', 'z');
$x < 26;
print implode($alpha) . '<br>', $x++, $alpha[] = array_shift($alpha)
);
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