如何使用 php 或 sql 对已存储在 sql 列中的字符串句子中的数字求和

Question

MEL1INFA73 Confirmed. Ksh29.00 sent to Safaricom Offers  for account Tunukiwa on 21/5/18 at 3:29 AM New M-PESA balance is Ksh5.50. Transaction cost, Ksh0.00.

An example of the string sentence is as above and the layout in sql table is as below:

Answer 1

You can use preg_match_all (regex) and array_sum.

The regex captures all digits with leading ksh and optional space.

Array_sum sums the digits captured in the regex, since preg_match returns a multidimensional array with 0 being the full match and 1 being the capture.

$str ='MEL1INFA73 Confirmed. Ksh29.00 sent to Safaricom Offers  for account Tunukiwa on 21/5/18 at 3:29 AM New M-PESA balance is Ksh5.50. Transaction cost, Ksh0.00.';

preg_match_all("/ksh\s*(\d+\.\d+)/i", $str, $matches);
echo array_sum($matches[1]); //34.5

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