Hi there, if i have some strings ie
test_324423
test_242332
test_767667
but I only want the number part (the bolded bit) how do I strip the leftmost 5 characters from the output so that i will have just
324423
242332
767667
any help would be greatly appreciated
Gary (5 Replies)
Hi ,
i have to strip the spaces in the string which has the following value
ABC DEF
i want this to appear like this
ABC DEF
is there any spilt method?
please help....
Thanks (3 Replies)
I am trying to strip out certain characters from a string on both (left & right) sides. For example, line=see@hear|touch, i only want to echo the "hear" part. Well i have tried this approach:
line=see@hear|touch
templine=${line#*@} #removed "see@"
echo ${templine%%\|*} #removed... (4 Replies)
I have a variable that has an absolute path for a file on my computer. This dynamically changes. Is there a way I can assign two new variables from that one?
variable: /Users/keith/Desktop/test/file.mov
1) filename - no path or extention ....so just....file
2) path no filename or... (3 Replies)
I want to create a temp file which is named based on a search string. The search string may contain spaces or characters that aren't supposed to be used in filenames so I want to strip those out.
My thought was to use 'tr' with but the result is the opposite of what I want:
$ echo "test... (5 Replies)
Dear experts,
my problem is pretty tricky.
I want to change a file (see attached input.txt), according to another file (help.txt). The output that is desired is in output.txt. The example is attached.
Note that
-dashes should not be treated specially, they are considered normal characters,... (2 Replies)
From a shell script, I'm trying to get the first two characters of an environment variable.
If I type at the command promot:
XX=`echo $MYVAR | cut -c1-2`
echo $XX
It works just fine
However, if I execute the exact same thing from a shell script, I get:
cut: you must specify a list of... (2 Replies)
I am parsing a file and I get differnt results everytime.
Sometimes I get 12s sometimes I get 54m and sometime 3h..
v1=12s or v1=54m or v1=3h
12s - 12 seconds
54m - 54 minutes
3h - 3 hour
I have to write a script in such a way that it whenever v1 is in minutes,
I should strip "m"... (14 Replies)
Hi all
I have a variable name as below
runbatch=FCSTworLOADfx_CYR
Now i need to search for FCST in this variable and run a program
I am doing like this but it is failing
if ; then ****RUN PROGRAM**
Please help
DJ
Please use CODE tags when displaying sample input,... (3 Replies)
I wrote myself a small little shell script to clean up a file I have issues with. In particular, I am stripping down a fully qualified host/domain name to just the hostname itself. The script works, but from a performance standpoint, it's not very fast and I will be working with large data sets.
... (4 Replies)
Discussion started by: dagamier
4 Replies
LEARN ABOUT PHP
bindec
BINDEC(3) 1 BINDEC(3)bindec - Binary to decimalSYNOPSIS
number bindec (string $binary_string)
DESCRIPTION
Returns the decimal equivalent of the binary number represented by the $binary_string argument.
bindec(3) converts a binary number to an integer or, if needed for size reasons, float.
bindec(3) interprets all $binary_string values as unsigned integers. This is because bindec(3) sees the most significant bit as another
order of magnitude rather than as the sign bit.
PARAMETERS
o $binary_string
- The binary string to convert
Warning
The parameter must be a string. Using other data types will produce unexpected results.
RETURN VALUES
The decimal value of $binary_string
EXAMPLES
Example #1
bindec(3) example
<?php
echo bindec('110011') . "
";
echo bindec('000110011') . "
";
echo bindec('111');
?>
The above example will output:
51
51
7
Example #2
bindec(3) interprets input as unsigned integers
<?php
/*
* The lesson from this example is in the output
* rather than the PHP code itself.
*/
$magnitude_lower = pow(2, (PHP_INT_SIZE * 8) - 2);
p($magnitude_lower - 1);
p($magnitude_lower, 'See the rollover? Watch it next time around...');
p(PHP_INT_MAX, 'PHP_INT_MAX');
p(~PHP_INT_MAX, 'interpreted to be one more than PHP_INT_MAX');
if (PHP_INT_SIZE == 4) {
$note = 'interpreted to be the largest unsigned integer';
} else {
$note = 'interpreted to be the largest unsigned integer
(18446744073709551615) but skewed by float precision';
}
p(-1, $note);
function p($input, $note = '') {
echo "input: $input
";
$format = '%0' . (PHP_INT_SIZE * 8) . 'b';
$bin = sprintf($format, $input);
echo "binary: $bin
";
ini_set('precision', 20); // For readability on 64 bit boxes.
$dec = bindec($bin);
echo 'bindec(): ' . $dec . "
";
if ($note) {
echo "NOTE: $note
";
}
echo "
";
}
?>
Output of the above example on 32 bit machines:
input: 1073741823
binary: 00111111111111111111111111111111
bindec(): 1073741823
input: 1073741824
binary: 01000000000000000000000000000000
bindec(): 1073741824
NOTE: See the rollover? Watch it next time around...
input: 2147483647
binary: 01111111111111111111111111111111
bindec(): 2147483647
NOTE: PHP_INT_MAX
input: -2147483648
binary: 10000000000000000000000000000000
bindec(): 2147483648
NOTE: interpreted to be one more than PHP_INT_MAX
input: -1
binary: 11111111111111111111111111111111
bindec(): 4294967295
NOTE: interpreted to be the largest unsigned integer
Output of the above example on 64 bit machines:
input: 4611686018427387903
binary: 0011111111111111111111111111111111111111111111111111111111111111
bindec(): 4611686018427387903
input: 4611686018427387904
binary: 0100000000000000000000000000000000000000000000000000000000000000
bindec(): 4611686018427387904
NOTE: See the rollover? Watch it next time around...
input: 9223372036854775807
binary: 0111111111111111111111111111111111111111111111111111111111111111
bindec(): 9223372036854775807
NOTE: PHP_INT_MAX
input: -9223372036854775808
binary: 1000000000000000000000000000000000000000000000000000000000000000
bindec(): 9223372036854775808
NOTE: interpreted to be one more than PHP_INT_MAX
input: -1
binary: 1111111111111111111111111111111111111111111111111111111111111111
bindec(): 18446744073709551616
NOTE: interpreted to be the largest unsigned integer
(18446744073709551615) but skewed by float precision
NOTES
Note
The function can convert numbers that are too large to fit into the platforms integer type, larger values are returned as float in
that case.
SEE ALSO decbin(3), octdec(3), hexdec(3), base_convert(3).
PHP Documentation Group BINDEC(3)