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How to extract only the number from a variable


How to extract only the number from a variable

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How to extract only the number from a variable
Tag : development , By : nickthecook
Date : January 11 2021, 03:34 PM

Hope that helps Something like this should work:
Number of Nights: Number of Nights:

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Extract number from variable


Tag : php , By : user140973
Date : March 29 2020, 07:55 AM
help you fix your problem I have this string:
$query = parse_url($url, PHP_URL_QUERY);
parse_str($query, $vars);
$guid2 = $vars['p'];

Extract number from a variable in powershell


Tag : regex , By : Vrki
Date : March 29 2020, 07:55 AM
To fix this issue I am very new to powershell and am trying to extract a number from a variable. For instance, I get the list of ports using this command: $ports = [system.io.ports.serialport]::getportnames() , Well, a quick way would be
$portlist = [System.IO.Ports.SerialPort]::GetPortNames() -replace 'COM'
[int[]] $portlist = ...

How do I extract certain bits from a number and put them in a new variable?


Tag : c , By : Paulh
Date : March 29 2020, 07:55 AM
I wish did fix the issue. So today I had an exam where I needed to write some programs and one of the assignments was really hard for me: , It is all about bit-masking and bit-shifting.
Example:
#include <stdio.h>

#define MASKA 0x038 // 0000 0011 1000
#define MASKB 0x780 // 0111 1000 0000
#define SHIFTA 3    //        XX X-->
#define SHIFTB 4    // 0XXX X--- >

int main()
{
   short msg = 0x08CF;
   short msg2 = ((msg & MASKA) >> SHIFTA) | ((msg & MASKB) >> SHIFTB);

   printf("0x%04x -> 0x%02x\n", msg, msg2);
}
0x08cf -> 0x09

How to extract only number from a variable


Tag : jquery , By : HokieGeek
Date : March 29 2020, 07:55 AM
Any of those help Simply use parseInt():
parseInt(discount_div,10)
'40   percent off '     =    40
'0 '                    =     0
'108  Rs off'           =   108

'40 and 20'             =    40
'text only'             =   NaN

Extract first number(s) from variable


Tag : php , By : mgz
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , I have variables that always start with a number or numbers and need the script to determine where this number ends, now for an example the variable can be like the following:
$arr = str_split($str);
for($i = 0; $i < count($arr); ++$i){
   if(!is_numeric($arr[$i])){
       echo "Number ends at index: " . $i;
       break;
   }
}
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