Hi,
i want to read a text file whose content(single line) will be a number like 1 or 2 or 3 ..... what i want to do is to read the file and increment the content of the file, using unix scripting.
Regards,
Senthil Kumar Siddhan. (2 Replies)
hello everybody!
I want to create a file with permissions for read, write, and execute to everybody using C, so I write this code:
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
int main(){
int fileDescriptor;
fileDescriptor =... (2 Replies)
Hi,
i'd like to implmeent emergency shutdown script in case our AC dies and the temperature rises too high.
I can get core temperatures with:
sensors | grep Core | cut -c15-16
Result is:
23
18
18
13
21
18
15
17
How can I check if any of the cores is above eg. 80 (that's C of... (2 Replies)
Hi,
from the manual
listen(2): listen for connections on socket - Linux man page
It has a parameter called backlog and it limits the maximum length of queue of pending list.
If I set backlog to 128, is it means no more than 128 packets can be handled by server?
If I have three... (3 Replies)
hi
I want to write a function which takes int as input and returns a string like this.
char GetString(int iNo)
{
switch(iNo)
{
case 0:
return "Zero";
break;
case 1:
return "One";
break;
}
}
void main()
{
int i;
printf("Enter... (1 Reply)
Hi,
I have the following requirement.
There will be following text/line in a file (eg: search-build.txt)
PRODUCT_VERSION="V:01.002.007.Build1234"
I need to update the incremental build number (eg here 007) every time I give a build through script. I am able to search the string and get... (4 Replies)
Hi,
I have column 5 in a file which contains string like this for ex.
RP11-125O5.2
SLCO1B1
CAPN1
FRMPD2
TXNL4B
So I do by
data = )]
ValueError: invalid literal for int() with base 10: 'R'
Can someday tell me how to convert this column into int successfully.
Thank You in... (7 Replies)
Discussion started by: rossi
7 Replies
LEARN ABOUT PHP
floatval
FLOATVAL(3) 1 FLOATVAL(3)floatval - Get float value of a variableSYNOPSIS
float floatval (mixed $var)
DESCRIPTION
Gets the float value of $var.
PARAMETERS
o $var
- May be any scalar type. floatval(3) should not be used on objects, as doing so will emit an E_NOTICE level error and return 1.
RETURN VALUES
The float value of the given variable. Empty arrays return 0, non-empty arrays return 1.
Strings will most likely return 0 although this depends on the leftmost characters of the string. The common rules of float casting apply.
EXAMPLES
Example #1
floatval(3) Example
<?php
$var = '122.34343The';
$float_value_of_var = floatval($var);
echo $float_value_of_var; // 122.34343
?>
Example #2
floatval(3) non-numeric leftmost characters Example
<?php
$var = 'The122.34343';
$float_value_of_var = floatval($var);
echo $float_value_of_var; // 0
?>
SEE ALSO boolval(3), intval(3), strval(3), settype(3), Type juggling.
PHP Documentation Group FLOATVAL(3)