PHP Need to replace 'space' in first word of string

Update: first explode with

$string = explode(",",$string);

then do for all value of $string ( in foreach for example )

For just spaces, use str_replace:

$string = str_replace(' ', '', $string);

For all whitespace, use preg_replace:

$string = preg_replace('/\s+/', '', $string);

look at here How to strip all spaces out of a string in php?

Maybe it is not very nice, but you can explode and then concatenate:

$your_string="San Jose, California";
$arr = explode(" ", $your_string);
$result = $arr[0] . $arr[1] . " " . $arr[2];

You can try substr_replace

$str = "San Jose, California" ;
echo substr_replace($str, '', strpos($str, " "), 1);

Output

SanJose, California

Given that the string is a CSV, you could explode it, process each value, and then implode it.

Example:

$string = "San Jose, California";
$values = explode(",", $string);
foreach($values as &$value)
{
    $value = str_replace(" ", "", $value);
}

$output = implode(", ", $values);

*untested

Don't use regulars expressions, it is overkill (slower). Use the count parameter of strreplace:

mixed str_replace ( mixed $search , mixed $replace , mixed $subject [, int &$count ] )

From PHP manual:

count

If passed, this will be set to the number of replacements performed.

$str = "San Jose, California";
$result = str_replace(" ", "", $str, 1);