I know this topic has been covered in one form or another, but it hasn't been covered to handle my problem.
I was given a Sparc4 running Solaris 2.5.1
The root password is unknown. This machine has no cdrom drive and it has no floppy drive.
I tried booting into the single user mode, but... (1 Reply)
Ok so I have a file which contains 2 columns/fields and I have another file with 2 columns. The files look like:
file1:
1 33
5 345
18 2
45 1
78 31
file2:
1 c1d2t0
2 c1d3t0
3 c1d4t0
4 c1d4t0
5 c2d1t0
6 c2d1t0
7 c2d1t0
8 c2d1t0
9 c2d1t0
10 c2d1t0 (11 Replies)
Hey all,
I am working on a static analysis tool and I wan't to see if it can find bugs in the linux kernel, it uses LLVM framework to analyse the instructions.
Long story short I need to build the kernel with a custom compiler. The compiler will create byte code files where binaries usually... (2 Replies)
Hello Everyone,
I am using the korn shell.
I was hoping to find a set of commands to count files in a directory.
I am using:
ls /home/name/abc* | wc -l
This command works fine when a file matches abc* (returns only the file count) , however when no file(s) are found I get... (2 Replies)
Hi, a brief introduction on the soundex python module(english sound comparison):
import soundex.py
a = "neu yorkk"
b = "new york city"
print soundex.sound_similar(a, b)
output:
1
Suppose I want to merge two files, called mergeleft.csv and mergeright.csv
Mergeleft.csv:
... (0 Replies)
Hi, I'm sorry I'm no coder so I came here, counting on your free time and good will to beg for spoonfeeding some good code. I'll try to be quick and concise!
Got file with 50k lines like this:
"Heh, heh. Those darn ninjas. They're _____."*wacky
The "canebrake", "timber" & "pygmy" are types... (7 Replies)
I have file1 and file2
I lookup field3 from file2 in field1 of file1 and if there is a match, output field 2,3,5 from file2.
I now want to add field2 of file1 in the output.
I suspect what I have to do is read the entire line of file1 into a 2 dim array? pls help.
here is my code:
... (9 Replies)
Hello folks!
Raised a bump on my head trying to figure this one out ;)
I have an xml file which needs to be edited, removing an entire property section in the work. Here's what the target section layout looks like:
<property name="something">
{any number of lines go here}
</property>... (7 Replies)
I have file1 and file2
I lookup field3 from file2 in field1 of file1 and if there is a match, output field 2,3,5 from file2.
I now want to add field2 of file1 in the output.
I suspect what I have to do is read the entire line of file1 into a 2 dim array? pls help. (1 Reply)
Greetings!
I have a quick question which must be deferred to those with greater skill than myself :)
In this situation, I wish to create a list of all the files on an entire partition in descending order sorted by date. I tried numerous switches for ls, and found this line to be the closest... (4 Replies)
Discussion started by: LinQ
4 Replies
LEARN ABOUT PHP
ctype_digit
CTYPE_DIGIT(3) 1 CTYPE_DIGIT(3)ctype_digit - Check for numeric character(s)SYNOPSIS
bool ctype_digit (string $text)
DESCRIPTION
Checks if all of the characters in the provided string, $text, are numerical.
PARAMETERS
o $text
- The tested string.
RETURN VALUES
Returns TRUE if every character in the string $text is a decimal digit, FALSE otherwise.
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 5.1.0 | |
| | |
| | Before PHP 5.1.0, this function returned TRUE |
| | when $text was an empty string. |
| | |
+--------+---------------------------------------------------+
EXAMPLES
Example #1
A ctype_digit(3) example
<?php
$strings = array('1820.20', '10002', 'wsl!12');
foreach ($strings as $testcase) {
if (ctype_digit($testcase)) {
echo "The string $testcase consists of all digits.
";
} else {
echo "The string $testcase does not consist of all digits.
";
}
}
?>
The above example will output:
The string 1820.20 does not consist of all digits.
The string 10002 consists of all digits.
The string wsl!12 does not consist of all digits.
Example #2
A ctype_digit(3) example comparing strings with integers
<?php
$numeric_string = '42';
$integer = 42;
ctype_digit($numeric_string); // true
ctype_digit($integer); // false (ASCII 42 is the * character)
is_numeric($numeric_string); // true
is_numeric($integer); // true
?>
NOTES
Note
This function expects a string to be useful, so for example passing in an integer may not return the expected result. However, also
note that HTML forms will result in numeric strings and not integers. See also the types section of the manual.
Note
If an integer between -128 and 255 inclusive is provided, it is interpreted as the ASCII value of a single character (negative val-
ues have 256 added in order to allow characters in the Extended ASCII range). Any other integer is interpreted as a string contain-
ing the decimal digits of the integer.
SEE ALSO ctype_alnum(3), ctype_xdigit(3), is_numeric(3), is_int(3), is_string(3).
PHP Documentation Group CTYPE_DIGIT(3)