<![CDATA[
<?php
################################################################################
# The following scripts are from a series of three articles called:
# Pro Parsing Tips with PHP
#
# These articles are found in php[architect] magazine, 2018.
#
# Feel free to cut and paste these functions into your own code.
#
# Please direct your questions and comments to mike@schrenk.com
#
################################################################################
/***********************************************************************
$string = split_string($string, $delineator, $desired, $type)
-------------------------------------------------------------
DESCRIPTION:
Returns a portion of the string that is either before or after
the delineator. The parse is not case sensitive, but the case of
the parsed string is not effected.
INPUT:
$string Input string to parse
$delineator Delineation point (place where split occurs)
$desired BEFORE: return portion before delineator
AFTER: return portion before delineator
$type INCL: include delineator in parsed string
EXCL: exclude delineator in parsed string
***********************************************************************/
function split_string($string, $delineator, $desired, $type)
{
# if needed, convert string and delineator to lower case
$lc_str = strtolower($string);
$marker = strtolower($delineator);
# Return text BEFORE the delineator
if($desired == BEFORE)
{
if($type == EXCL) // Return text ESCL of the delineator
$split_here = strpos($lc_str, $marker);
else // Return text INCL of the delineator
$split_here = strpos($lc_str, $marker)+strlen($marker);
$parsed_string = substr($string, 0, $split_here);
}
# Return text AFTER the delineator
else
{
if($type==EXCL) // Return text ESCL of the delineator
$split_here = strpos($lc_str, $marker) + strlen($marker);
else // Return text INCL of the delineator
$split_here = strpos($lc_str, $marker) ;
$parsed_string = substr($string, $split_here, strlen($string));
}
return $parsed_string;
}
/*-------------------------*/
/***********************************************************************
$string = return_between($string, $start, $end, $type)
-------------------------------------------------------------
DESCRIPTION:
Returns a substring of $string delineated by $start and $end
The parse is not case sensitive, but the case of the parsed
string is not effected.
INPUT:
$string Input string to parse
$start Defines the beginning of the sub string
$end Defines the end of the sub string
$type INCL: include delineators in parsed string
EXCL: exclude delineators in parsed string
***********************************************************************/
function return_between($string, $start, $stop, $type)
{
$temp = split_string($string, $start, AFTER, $type);
return split_string($temp, $stop, BEFORE, $type);
}
/*-------------------------*/
/***********************************************************************
$array = parse_array($string, $open_tag, $close_tag)
-------------------------------------------------------------
DESCRIPTION:
Returns an array of strings that exists repeatedly in $string.
This function is useful for returning an array that contains
links, images, tables or any other data that appears more than
once.
INPUT:
$string String that contains the tags
$open_tag Name of the open tag (i.e. "<a>")
$close_tag Name of the closing tag (i.e. "</title>")
***********************************************************************/
function parse_array($string, $beg_tag, $close_tag)
{
preg_match_all("($beg_tag(.*)$close_tag)siU", $string, $matching_data);
return $matching_data[0];
}
/*-------------------------*/
/***********************************************************************
$string = remove($string, $open_tag, $close_tag)
-------------------------------------------------------------
DESCRIPTION:
Removes all text between $open_tag and $close_tag
INPUT:
$string The target of your parse
$open_tag The starting delimitor
$close_tag The ending delimitor
***********************************************************************/
function remove($string, $open_tag, $close_tag)
{
# Get array of things that should be removed from the input string
$remove_array = parse_array($string, $open_tag, $close_tag);
# Remove each occurrence of each array element from string;
for($xx=0; $xx<count($remove_array); $xx++)
$string = str_replace($remove_array, "", $string);
return $string;
}
?>]]>