PHP how to find uppercase in array - php

Question

I have an array with many words, but some senteces are in uppercase. For example:
THIS SENTENCE IS UPPERCASE
this sentece is in lowercase
And I want to split this two sentences by \r\n, but I cant find how to do it
Here is how I retrive this array:
$result_pk_info = array();
while ($row = odbc_fetch_array($sql_pk_info))
{
$opisanie = iconv("cp1257", "UTF-8", trim($row['opis']));
$id = iconv("cp1257", "UTF-8", trim($row['pacientid']));
$date = iconv("cp1257", "UTF-8", trim($row['data']));
$desc = explode('##$', $opisanie);
$all_info = "<tr><td>".$desc[1]."</td></tr>";
$result_pk_info[] = $all_info;
}
in $desc I have words array in which I want to search and split uppercase and lowercase.
So can anyone help me with it?
UPD the text which I have hase something like this structure:
SENTENCE IN UPPERCASE Sentece in lower case

Answer 1

This function is what you're looking for :
function split_upper_lower ($string)
{
$words = explode (' ', $string);
$i = 0;
foreach ($words as $word)
{
if (ctype_upper ($word))
$new_string_array[++$i]['type'] = 'UPPER';
else
$new_string_array[++$i]['type'] = 'LOWER';
$new_string_array[$i]['word'] = $word;
}
$new_string = '';
foreach ($new_string_array as $key => $new_word)
{
if (!isset ($current_mode))
{
if (ctype_upper ($new_word))
$current_mode = 'UPPER';
else
$current_mode = 'LOWER';
}
if ($new_word['type'] === $current_mode)
{
$new_string .= $new_word['word'];
if (isset ($new_string_array[$key + 1]))
$new_string .= ' ';
}
else
{
$new_string .= "\r\n" . $new_word['word'];
if (isset ($new_string_array[$key + 1]))
$new_string .= ' ';
if ($current_mode === 'UPPER') $current_mode = 'LOWER';
else $current_mode = 'UPPER';
}
}
return $new_string;
}
Tested it with br :
$string = 'HI how ARE you doing ?';
echo split_upper_lower ($string);
Output :
HI
how
ARE
you doing ?

Answer 2

Use preg_match: http://php.net/manual/en/function.preg-match.php
$string = 'THIS SENTENCE IS UPPERCASE';
$string2 = 'this sentece is in lowercase';
if(preg_match ( '/[A-Z ]$/' , $string))
{
echo 'uppercase';
}
else
{
echo 'lowercase';
}
Use this in your loop through $desc. Where $string is one element of an array containing one string.
/[A-Z ]$/ will match all uppercase with spaces. You can just upgrade your regexp to grab something else from strings.

Answer 3

If I understood your question you can do like this ...
$desc = array ("abcd","ABCD","bbb","B");
foreach($desc as $value) {
if(ctype_upper($value)) {
// character is upper
} else {
// character is lower
}
}

Answer 4

This can be done using preg_match_all(). Use the following code,
$result_pk_info = array();
while ($row = odbc_fetch_array($sql_pk_info))
{
$opisanie = iconv("cp1257", "UTF-8", trim($row['opis']));
$id = iconv("cp1257", "UTF-8", trim($row['pacientid']));
$date = iconv("cp1257", "UTF-8", trim($row['data']));
$desc = explode('##$', $opisanie);
//converting $desc array to string
$string = implode(" " , $desc);
//Upper case Matching
$upprCase = preg_match_all('/[A-Z]/', $string, $uprmatches, PREG_OFFSET_CAPTURE);
if($upprCase){
foreach ($uprmatches as $match)
{
foreach($match as $value)
//Iam a uppercase
print $UpperCase = $value[0];
}}
//Splitting with \r\n
print "\r\n";
//lower case matching
$lowrCase = preg_match_all('/[a-z]/', $string, $lowrmatches, PREG_OFFSET_CAPTURE);
if($lowrCase){
foreach ($lowrmatches as $match)
{
foreach($match as $value)
//Iam a lowercase
print $lowerCase = $value[0];
}}
}