PHP Strip String, Convert to int -

PHP Strip String, Convert to int -

i have string $special formatted £130.00 , ex tax(vat) price.

i need strip first char can run simple addition.

$str= substr($special, 1, 0); // strip first char '£' echo $str ; // echo value check worked $endprice = (0.20*$str)+$str ; // work out vat

i don't receive value when echo on sec line ? need convert string integer in order run add-on ?

thanks

matt

+++ update

thanks help this, took code , added of own, there more nicer ways works :) found out if cost below 1000 £130.00 if cost larger value include break. ie £1,400.22.

$str = str_replace('£', '', $price); $str2 = str_replace(',', '', $str); $vatprice = (0.2 * $str2) + $str2; $display_vat_price = sprintf('%0.2f', $vatprice); echo "£"; echo $display_vat_price ; echo " (inc vat)";

thanks again, matt

you cannot utilize substr way using currently. because trying remove £ char, two-byte unicode character, substr() isn't unicode safe. can either utilize $str = substr($string, 2), or, better, str_replace() this:

$string = '£130.00'; $str = str_replace('£', '', $string); echo (0.2 * $str) + $str; // 156

original answer

i'll maintain version still can give insight. reply ok if £ wouldn't 2byte unicode character. knowing this, can still utilize need start sub-string @ offset 2 instead of 1.

your usage of substr wrong. should be:

$str = substr($special, 1);

check documentation 3rd param length of sub-string. passed 0, hence got empty string. if omit 3rd param homecoming sub-string starting index given in first param until end of original string.

php string int