How do you get PHP to print this...

[lazukars]

I am starting with a string. Let's say that string is "horse.gallup." Now I need to print out every variation of horse without one if its letters plus the ending ".gallup". So the result should be as follows.

orse.gallup
hrse.gallup
hose.gallup
hore.gallup
hors.gallup

Now if someone could figure out how to get the above results with any string that contains a period within it, that would be awesome.

Thanks in advance for any help. I is really appreciated.

Sincerely,
Ryan

[hsriat]

See if this suits your needs...
[PHP]<?php

$input = "horse.gallup";

$prefix = strtok($input, ".");
$suffix = strtok(".");

for ($i = strlen($prefix); $i>0; $i--)
{
$new_prefix = make_new_combinations($prefix, $i);

foreach($new_prefix as $key=>$value)
$new_suffix[$key] = $value.".".$suffix;

echo "<pre>";
print_r($new_suffix);

unset($new_suffix);
}

function make_new_combinations($word, $length)
{
$word_array = str_split($word);
$new_words = array();

$flags_array = get_combination_flags(count($word_array), $length);
foreach ($flags_array as $flags)
{

foreach ($flags as $key=>$flag)
if ($flag == 0)
unset($word_array[$key]);

array_push($new_words, implode("", $word_array));

$word_array = str_split($word);
}
return $new_words;
}


function get_combination_flags($total, $required)
{
$flag_array = array();
$bin = "";

for ($i=0; $i<$total; $i++)
$bin .= "1";
$dec = bindec($bin);

for ($i=0; $i<=$dec; $i++)
{
$num_of_chars = count_chars(decbin($i), 1);
if ($num_of_chars[49]==$required)
{
$temp = decbin($i);
$length = strlen($temp);
$pre = "";

if ($length<$total)
for ($j=$length; $j<$total; $j++)
$pre .= "0";

$temp = $pre.$temp;
array_push($flag_array, str_split($temp));
}
}
return $flag_array;
}
?>[/PHP]

[nashruddin]

Another code for your weird problem:

<?php
$input = 'horse.gallup';
 
preg_match("/^([\w]+).([\w]+)$/", $input, $matches);
 
$prefix = $matches[1];
$suffix = $matches[2];
 
for ($i = 0 ; $i < strlen($prefix) ; $i++) {
    $a = substr($prefix, 0, $i);
    $b = substr($prefix, $i+1, strlen($prefix));
 
    $text = "$a$b.$suffix";
    print "$text<br>";
}
?>
 

[lazukars]

Thank you so much. That worked great.

[dlite922]

Thank you so much. That worked great.

who's solution worked or are you referring to?