Building software in most languages is a pain. Remember ant build.xml, maven2 pom files, and multi-level makefiles?
Python has a simple solution for building modules, applications, and extensions called distutils. Disutils comes as part of the Python distribution so there are no other packages... (0 Replies)
I have the following problem, which I need done in Perl/ or Python using Unix/linux filters...
1. You have a very large file, named 'ColCheckMe', tab-delmited, that you are asked to process. You are told that each line in 'ColCheckMe' has 7 columns, and that the values in the... (1 Reply)
I have the following problem, which I need done in Perl/ or Python using Unix/linux filters...
1. You have a very large file, named 'ColCheckMe', tab-delmited, that you are asked to process. You are told that each line in 'ColCheckMe' has 7 columns, and that the values... (1 Reply)
Hi,
i have the below script:
###############################SimpleEncryption################################
#Simple encryption implemented in python
#Author:pandeeswaran
###############################################################################
def Encrypt(input):
res=''
... (13 Replies)
Cheers!
In /etc/syslog.conf, if an error type is not specified, is it logged anywhere (most preferable is it logged to /var/log/messages) or not?
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This site is the first to get this snippet.
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A shell script derivative of this will be used as a further capture for CygWin's AudioScope.sh.
Thoroughly read ALL the comments in... (0 Replies)
Discussion started by: wisecracker
0 Replies
LEARN ABOUT PHP
strpos
STRPOS(3) 1 STRPOS(3)strpos - Find the position of the first occurrence of a substring in a stringSYNOPSIS
mixed strpos (string $haystack, mixed $needle, [int $offset])
DESCRIPTION
Find the numeric position of the first occurrence of $needle in the $haystack string.
PARAMETERS
o $haystack
- The string to search in.
o $needle
- If $needle is not a string, it is converted to an integer and applied as the ordinal value of a character.
o $offset
- If specified, search will start this number of characters counted from the beginning of the string. Unlike strrpos(3) and strri-
pos(3), the offset cannot be negative.
RETURN VALUES
Returns the position of where the needle exists relative to the beginning of the $haystack string (independent of offset). Also note that
string positions start at 0, and not 1.
Returns FALSE if the needle was not found.
Warning
This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE. Please read the section on
Booleans for more information. Use the === operator for testing the return value of this function.
EXAMPLES
Example #1
Using ===
<?php
$mystring = 'abc';
$findme = 'a';
$pos = strpos($mystring, $findme);
// Note our use of ===. Simply == would not work as expected
// because the position of 'a' was the 0th (first) character.
if ($pos === false) {
echo "The string '$findme' was not found in the string '$mystring'";
} else {
echo "The string '$findme' was found in the string '$mystring'";
echo " and exists at position $pos";
}
?>
Example #2
Using !==
<?php
$mystring = 'abc';
$findme = 'a';
$pos = strpos($mystring, $findme);
// The !== operator can also be used. Using != would not work as expected
// because the position of 'a' is 0. The statement (0 != false) evaluates
// to false.
if ($pos !== false) {
echo "The string '$findme' was found in the string '$mystring'";
echo " and exists at position $pos";
} else {
echo "The string '$findme' was not found in the string '$mystring'";
}
?>
Example #3
Using an offset
<?php
// We can search for the character, ignoring anything before the offset
$newstring = 'abcdef abcdef';
$pos = strpos($newstring, 'a', 1); // $pos = 7, not 0
?>
NOTES
Note
This function is binary-safe.
SEE ALSO stripos(3), strrpos(3), strripos(3), strstr(3), strpbrk(3), substr(3), preg_match(3).
PHP Documentation Group STRPOS(3)