Hello,
I am trying to compare two dates which are in variables and i am not getting the correct result as expected.
$first_date = '07/19/2007'
$second_date='07/20/2007'
Can you please suggest how to i check whether they are equal or not.
if ($first_date -eq $second_date) condition is not... (3 Replies)
I am wriitng a shell script to compare a date in `date +%Y%m%d%H%M` to the output of `cat /var/adm/messages.0 | grep Temp |grep "CPU Fans" | cut -f1-4,19 -d' '` which looks like
Dec 2 11:30:57 79
Dec 2 11:37:58 79
Dec 2 11:44:58 79
Dec 2 11:50:59 79
Dec 2 11:58:00 79
Dec 2... (1 Reply)
Hi All,
I have thefollowing files in the directory inbox/sat
ras.sat.trn.20090103.001902.00004358
ras.sat.trn.20090612.001903.00005339
ras.sat.trn.20090723.001902.00004358
The above file contains the date of the file creation. We just need to write a ksh shell script to check the... (5 Replies)
Hi,
I have a file which has the date in the last line in the example pasted along with the rates of the countries.
-- I want to compare the date in the last line of the file mentioned in the example below with the system date from Monday to Friday.
-- If system date is equal to the date... (2 Replies)
Hi,
I have written the following Pro*C program to get the difference between 2 dates.But when I am printing the value of the date difference,it is always showing 0.
#include<stdio.h>
#include<sqlca.h>
#include<oraca.h>
void main()
{
EXEC SQL BEGIN DECLARE SECTION;
int diff;
... (4 Replies)
Hi All,
I want to generate quarter dates using awk or anything, by giving a dates as input
for example :
start_date=2010-01-01
end_date=2010-05-31
output should be:
start_date end_date qtr
2010-01-01 2010-03-31 1
2010-04-01 2010-05-31 2
Example 2:... (1 Reply)
I have a string like ab or abc of whatever length. But i want to know whether another string ( for example, abcfghijkl, OR a<space> bcfghijkl ab<space> cfghijkl OR a<space>bcfghijkl OR ab<space> c<space> fghijkl ) starts with ab or abc... space might existing on the longer string... If so, i... (1 Reply)
Hi All,
I would need your help to compare dates in my script.
Say if I have the dates in a file I need to comapre these dates with yesterday's date and the dates which are older than yesterday needs to be displayed.
Example:
03/22/2012
03/24/2012
03/20/2012
03/21/2012
03/12/2012... (1 Reply)
I have a script called " passwd_status " which gives the passwd-s status of my servers.
the script output is like below
password status for A:
abc ks 10/05/115 1 30 ps
password status for B:
abc ks 09/25/115 1 30 ps
password status for C:
abc ks 10/10/115 1 30 ps
Now , i want to... (1 Reply)
Discussion started by: charanarjun
1 Replies
LEARN ABOUT PHP
substr
SUBSTR(3) 1 SUBSTR(3)substr - Return part of a stringSYNOPSIS
string substr (string $string, int $start, [int $length])
DESCRIPTION
Returns the portion of $string specified by the $start and $length parameters.
PARAMETERS
o $string
- The input string. Must be one character or longer.
o $start
- If $start is non-negative, the returned string will start at the $start'th position in $string, counting from zero. For
instance, in the string ' abcdef', the character at position 0 is ' a', the character at position 2 is ' c', and so forth. If
$start is negative, the returned string will start at the $start'th character from the end of $string. If $string is less than or
equal to $start characters long, FALSE will be returned.
Example #1
Using a negative $start
<?php
$rest = substr("abcdef", -1); // returns "f"
$rest = substr("abcdef", -2); // returns "ef"
$rest = substr("abcdef", -3, 1); // returns "d"
?>
o $length
- If $length is given and is positive, the string returned will contain at most $length characters beginning from $start (depend-
ing on the length of $string). If $length is given and is negative, then that many characters will be omitted from the end of
$string (after the start position has been calculated when a $start is negative). If $start denotes the position of this trunca-
tion or beyond, false will be returned. If $length is given and is 0, FALSE or NULL, an empty string will be returned. If
$length is omitted, the substring starting from $start until the end of the string will be returned.
Example #2
Using a negative $length
<?php
$rest = substr("abcdef", 0, -1); // returns "abcde"
$rest = substr("abcdef", 2, -1); // returns "cde"
$rest = substr("abcdef", 4, -4); // returns false
$rest = substr("abcdef", -3, -1); // returns "de"
?>
RETURN VALUES
Returns the extracted part of $string; or FALSE on failure, or an empty string.
CHANGELOG
+--------------+---------------------------------------------------+
| Version | |
| | |
| | Description |
| | |
+--------------+---------------------------------------------------+
|5.2.2 - 5.2.6 | |
| | |
| | If the $start parameter indicates the position |
| | of a negative truncation or beyond, false is |
| | returned. Other versions get the string from |
| | start. |
| | |
+--------------+---------------------------------------------------+
EXAMPLES
Example #3
Basic substr(3) usage
<?php
echo substr('abcdef', 1); // bcdef
echo substr('abcdef', 1, 3); // bcd
echo substr('abcdef', 0, 4); // abcd
echo substr('abcdef', 0, 8); // abcdef
echo substr('abcdef', -1, 1); // f
// Accessing single characters in a string
// can also be achieved using "square brackets"
$string = 'abcdef';
echo $string[0]; // a
echo $string[3]; // d
echo $string[strlen($string)-1]; // f
?>
Example #4
substr(3) casting behaviour
<?php
class apple {
public function __toString() {
return "green";
}
}
echo "1) ".var_export(substr("pear", 0, 2), true).PHP_EOL;
echo "2) ".var_export(substr(54321, 0, 2), true).PHP_EOL;
echo "3) ".var_export(substr(new apple(), 0, 2), true).PHP_EOL;
echo "4) ".var_export(substr(true, 0, 1), true).PHP_EOL;
echo "5) ".var_export(substr(false, 0, 1), true).PHP_EOL;
echo "6) ".var_export(substr("", 0, 1), true).PHP_EOL;
echo "7) ".var_export(substr(1.2e3, 0, 4), true).PHP_EOL;
?>
The above example will output:
1) 'pe'
2) '54'
3) 'gr'
4) '1'
5) false
6) false
7) '1200'
ERRORS /EXCEPTIONS
Returns FALSE on error.
Example #5
<?php
var_dump(substr('a', 1)); // bool(false)
?>
SEE ALSO strrchr(3), substr_replace(3), preg_match(3), trim(3), mb_substr(3), wordwrap(3), String access and modification by character.
PHP Documentation Group SUBSTR(3)