03-18-2013
%% tells the shell to start looking for the last occurrence of '/' from the end of string and strip off everything (*) from there till the end (this is done by \/*). The last occurrence of '/' from the end of string is the '/' right after 192.168.1.101. So, it deletes this '/' and all that follows, leaving behind just the IP address.
Similarly, #*\/ starts looking from the beginning of string until the first occurrence of '/'. The first occurrence of '/' from the beginning of string is the '/' right after 192.168.1.101. So it deletes the IP address and the first occurrence of '/', leaving behind "parent/child".
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STRRCHR(3) 1 STRRCHR(3)
strrchr - Find the last occurrence of a character in a string
SYNOPSIS
string strrchr (string $haystack, mixed $needle)
DESCRIPTION
This function returns the portion of $haystack which starts at the last occurrence of $needle and goes until the end of $haystack.
PARAMETERS
o $haystack
- The string to search in
o $needle
- If $needle contains more than one character, only the first is used. This behavior is different from that of strstr(3). If
$needle is not a string, it is converted to an integer and applied as the ordinal value of a character.
RETURN VALUES
This function returns the portion of string, or FALSE if $needle is not found.
CHANGELOG
+--------+------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+------------------------------------+
| 4.3.0 | |
| | |
| | This function is now binary safe. |
| | |
+--------+------------------------------------+
EXAMPLES
Example #1
strrchr(3) example
<?php
// get last directory in $PATH
$dir = substr(strrchr($PATH, ":"), 1);
// get everything after last newline
$text = "Line 1
Line 2
Line 3";
$last = substr(strrchr($text, 10), 1 );
?>
NOTES
Note
This function is binary-safe.
SEE ALSO
strstr(3), strrpos(3).
PHP Documentation Group STRRCHR(3)