The string is converted to an array several times - php

Question

I want to convert the string to an array.The following example.
1.Capitalize the first letter
2.The letter after ',' or '_' becomes capital
3.Strings are separated by ','
4.swap underline to ' '
$str_1 = "_ab,cb_ef,kk,uu";
$str_2 = ",cb_ef,kk,uu";
$str_3 = "cb_ef,kk,uu";
//convert to
$arr_1 = ('Ab','Cb Ef','Kk','Uu');
$arr_2 = ('Cb Ef','Kk','Uu');
$arr_3 = ('Cb Ef','Kk','Uu');
//There are my code and result .
$func = function( $str ){
$str_len = strlen( $str );
for ( $i = 0 ; $i < $str_len ; $i++ )
{
if ( $str[ $i ] == ',' && $str[ $i ] == '_' )
{
$str[ $i ] = $str[ $i ] == '_' ? ' ' : $str[ $i ] ;
if ( ord( $str[ $i +1 ] ) <= 122 && ord( $str[ $i +1 ] ) >= 97 )
{
$str[ $i ] = chr( ord( $str[ ++$i ] ) - 32 );
}
}
}
return $str;
};
var_dump(explode( ',' , $func( 'ss,adsa_sdfs' )));
//result is this
array(2) { [0]=> string(2) "ss" [1]=> string(9) "adsa_sdfs" }

Answer 1

Try this
function conv( $str ) {
$res = [];
$arr = explode( ',' , $str );
foreach ( $arr as $key => $value ) {
$res[] = ucwords( str_replace( '_' , ' ' , $value ) );
}
return $res;
}
var_dump( conv( 'ss,adsa_sdfs' ) );
Response:
array(2) { [0]=> string(2) "Ss" [1]=> string(9) "Adsa Sdfs" }

Answer 2

The demo code with your test cases:
<?php
function upper($s, $sep)
{
// upper the char separated by $sep
$a = explode($sep, $s);
$a = array_map('ucfirst', $a);
return join($sep, $a);
}
function test($s)
{
// upper the chars separated by '_'
$s = upper($s, '_');
// upper the chars separated by ','
$s = upper($s, ',');
// change all '_' to ' ' and upper the chars
$s = str_replace('_', ' ', $s);
$s = upper($s, ' ');
// trim unused chars
$s = trim($s, ' ,');
return explode( ',', $s);
}
$tests = [
"_ab,cb_ef,kk,uu" => ['Ab','Cb Ef','Kk','Uu'],
",cb_ef,kk,uu" => ['Cb Ef','Kk','Uu'],
"cb_ef,kk,uu" => ['Cb Ef','Kk','Uu'],
"ss,adsa_sdfs" => ['Ss', 'Adsa Sdfs'],
];
foreach ($tests as $s=>$a) {
$out = test($s);
if ($out === $a) {
echo "OK! $s = " . json_encode($a) . PHP_EOL;
} else {
echo "WRONG! $s is " . json_encode($out) . PHP_EOL;
}
}
Output:
OK! _ab,cb_ef,kk,uu = ["Ab","Cb Ef","Kk","Uu"]
OK! ,cb_ef,kk,uu = ["Cb Ef","Kk","Uu"]
OK! cb_ef,kk,uu = ["Cb Ef","Kk","Uu"]
OK! ss,adsa_sdfs = ["Ss","Adsa Sdfs"]

Answer 3

Write this
<?php
$str_1 = "_ab,cb_ef,kk,uu";
$str_2 = ",cb_ef,kk,uu";
$str_3 = "cb_ef,kk,uu";
function convert_to($arr){
$arr = str_replace('_', ' ', $arr);
$arr_1 = explode(",",$arr);
$new_array = array_map('trim', $arr_1);
$new_array = array_map('ucwords', $arr_1); // first letter after word capitalize
$new_array = array_filter($new_array, 'strlen'); // remove empty item
$new_array = array_values($new_array); // arrange and shift after removing empty item
return $new_array;
}
$arr_1 = convert_to($str_1);
$arr_2 = convert_to($str_2);
$arr_3 = convert_to($str_3);
var_dump($arr_1);
var_dump($arr_2);
var_dump($arr_3);
Output :
array(4) {
[0]=>
string(3) " Ab"
[1]=>
string(5) "Cb Ef"
[2]=>
string(2) "Kk"
[3]=>
string(2) "Uu"
}
array(3) {
[0]=>
string(5) "Cb Ef"
[1]=>
string(2) "Kk"
[2]=>
string(2) "Uu"
}
array(3) {
[0]=>
string(5) "Cb Ef"
[1]=>
string(2) "Kk"
[2]=>
string(2) "Uu"
}

Answer 4

You could use PHP's built-in functions for this kind of situation:
function processString($param){
$explode = explode(',', $param);
$replace = str_replace('_', ' ', $explode);
$replace = array_map('trim', $replace);
$ucfirst = array_map('ucwords', $replace);
return $ucfirst;
}
The explanation is:
First we convert the string to array based on comma separation using explode() method.
Next, we need to convert underscore into space using str_replace() method.
I noticed in your example that string with space (previously underscore) in it is stripped. This need to be implemented using trim(). Since the string already converted into array, we use array_map() method to process trim for all array values.
Finally, convert every word to uppercase. Fortunately, PHP already have the method: ucwords(). Just need to array_map() it.
This is how you test the code:
$str_1 = "_ab,cb_ef,kk,uu";
$str_2 = ",cb_ef,kk,uu";
$str_3 = "cb_ef,kk,uu";
print_r(processString($str_1));
print_r(processString($str_2));
print_r(processString($str_3));

Answer 5

Try the following code:
<?php
function ConvertToArr($str)
{
$result = array();
$temp_arr1 = explode(",", $str);
for ($count1 = 0; $count1 < count($temp_arr1); $count1++) {
$temp_results = array();
$temp_arr2 = explode("_", $temp_arr1[$count1]);
for ($count2 = 0; $count2 < count($temp_arr2); $count2++) {
$temp_str = ucfirst($temp_arr2[$count2]);
if ($temp_str != "")
$temp_results []= $temp_str;
}
$temp_results = implode(" ", $temp_results);
if (trim($temp_results) != "")
$result []= $temp_results;
}
return $result;
}
$str_1 = "_ab,cb_ef,kk,uu";
$str_2 = ",cb_ef,kk,uu";
$str_3 = "cb_ef,kk,uu";
print_r(ConvertToArr($str_1));
print_r(ConvertToArr($str_2));
print_r(ConvertToArr($str_3));
?>
It produces the following output:
Array
(
[0] => Ab
[1] => Cb Ef
[2] => Kk
[3] => Uu
)
Array
(
[0] => Cb Ef
[1] => Kk
[2] => Uu
)
Array
(
[0] => Cb Ef
[1] => Kk
[2] => Uu
)