PHP How to Replace string with empty space? [duplicate]

You can also use php explode:

$state = "GUJARAT (24)";
$output = explode( "(", $state );
echo trim( $output[0] ); // GUJARAT

$str = "GUJARAT (24)";
echo '<br />1.';
print_r(sscanf($str, "%s (%d)"));
echo '<br />2.';
print_r(preg_split('/[\(]+/', rtrim($str, ')')));
echo '<br />3.';
echo substr($str, strpos($str, '(')+1, strpos($str, ')')-strpos($str, '(')-1);
echo '<br />4.';
echo strrev(strstr(strrev(strstr($str, ')', true)), '(', true));
echo '<br />5.';
echo preg_replace('/(\w+)\s+\((\d+)\)/', "$2", $str);

If you know the stateCode length, and it is fixed

$state = "GUJARAT (24)";
$state = substr($state, strpos($state, "(") + 1, 2);
// get string upto "(", and remove right white space    
echo $state;

You can check more about substr and strpos in php manual.

If stateCode length is not fixed, you can use regular expression:-

  $state = 'GUJARAT (124)';
  preg_match('/(\d+)/', $state, $res);
  $stateCode = $res[0]; 
  var_dump($stateCode);

function get_string_between($string, $start, $end){
    $string = ' ' . $string;
    $ini = strpos($string, $start);
    if ($ini == 0) return '';
    $ini += strlen($start);
    $len = strpos($string, $end, $ini) - $ini;
    return substr($string, $ini, $len);
}

$fullstring = 'this is my [tag]dog[/tag]';
$parsed = get_string_between($fullstring, '[tag]', '[/tag]');

echo $parsed; // (result = dog)

you can use the function preg_match

$state = 'GUJARAT (24)'
$result = [];
preg_match('/[\(][\d]+[\)]/', $state, $result);
$stateCode = $result[0] // (24)
$stateCode = substr($stateCode, 1, strlen($stateCode) - 2); // will output 24