I've got field in my database which contain strings like 21;48;33;22;31. Then I'd like to convert it to mathematical calculation 21+48+33+22+31.
$points = "21;48;33;22;31"; $points = str_replace(";","+",$points ); $points = preg_replace('/[^0-9\+\-\*\/\s]+/', '', $points); echo $points; But that simply does not work. I've got the same string "21+48+33+22+31" instead of the sum.
$points = "21;48;33;22;31"; $points = explode(';',$points ); $points = array_sum($points); echo $points; 
$points = "21;48;33;22;31"; $arr = explode(";", $points); $points = 0; foreach($arr as $key => $rows){ $points += $rows[$key]; } echo $points; Try above code it will give you proper result.
or you can try it also:
$points = "21;48;33;22;31"; $arr = explode(";", $points); echo $points = array_sum($arr); The easiest way is to explode the string.
Then you can iterate with foreach over the resulting array and calculate them.
$points = "21;48;33;22;31"; $points = explode(";", $points); $calc = 0; forearch($points as $point) { $calc += $point; } Or your can use array_sum:
$points = "21;48;33;22;31"; $points = explode(";", $points); $calc = array_sum($points); Something like that. Perhaps there are some shorter ways.
$string = "21;48;33;22;31"; $string = explode(";" , "21;48;33;22;31"); $point = 0; foreach($string as $num) { // by using (int) you can convert string to int. $point = (int)$num + $point; } print($point); // output 155 explode it then loop for sum...
<?php $total = 0; // for getting the total $points = "21;48;33;22;31"; $points = explode(';',$points); for($i=0;$i<count($points);$i++){ $total+= $points[$i]; } echo $total; ?> 
<?php eval('$sum = ' . str_replace(';','+','21;48;33;22;31').';'); echo $sum; 
array_sum(explode(';', $points));