I have this string:
$shortcode = '[csvtohtml_create include_rows="1-10"
debug_mode="no" source_type="guess" path="largecsv"
source_files="test?output=csv" csv_delimiter="," ]'
I want to retrieve attributes and their values even their equal-signs or spaces within quotes.
This question is based on this question: How to explode a string but not within quotes in php?
I have this code:
$args = preg_split('/"[^"]+"(*SKIP)(*F)|\h+/', $shortcode);
$attrs = [];
foreach( $args as $item )
{
//Only use those items in array $args with = sign
if ( strpos( $item , '=' ) !== false )
{
$sep = explode( '=', $item );
$key = $sep[0];
$value = $sep[1];
$attrs[$key] = str_replace( '"', '', $value );
}
}
$args = explode( '=', $sc );
I get this result: (source_files without output=csv)
Array attrs
"include_rows" => "1-10"
"debug_mode" => "no"
"source_type" => "guess"
"path" => "largecsv"
"source_files" => "test.csv?output"
"csv_delimiter" => ","
The result I want is:
Array attrs
"include_rows" => "1-10"
"debug_mode" => "no"
"source_type" => "guess"
"path" => "largecsv"
"source_files" => "test.csv?output=csv"
"csv_delimiter" => ","
etc...
I guess I should put in equal-sign (or is it ?=) somewhere in here but regex is not my strength...
$args = preg_split('/"[^"]+"(*SKIP)(*F)|\h+/', $shortcode);
Might be easier to get the matches. Then you can do whatever. I turn it into a query string and parse into an array:
preg_match_all('/[^\s=]+="[^"]*"/', $shortcode, $result);
parse_str(implode('&', $result[0]), $result);
Now $result yields:
Array
(
[include_rows] => "1-10"
[debug_mode] => "no"
[source_type] => "guess"
[path] => "largecsv"
[source_files] => "test?output=csv"
[csv_delimiter] => ","
)
To get rid of the quotes then parse it as ini settings:
$result = parse_ini_string(implode("\n", $result[0]));
Yields:
Array
(
[include_rows] => 1-10
[debug_mode] => no
[source_type] => guess
[path] => largecsv
[source_files] => test?output=csv
[csv_delimiter] => ,
)
You were on the right track with exploding the equals sign. This implementation does array_shift to get the key, then implodes the rest of the array together.
<?php
$sc = '[csvtohtml_create include_rows="1-10"
debug_mode="no" source_type="guess" path="largecsv"
source_files="test?output=csv" csv_delimiter="," ]';
$args = array_filter(array_map('trim', preg_split('/"[^"]+"(*SKIP)(*F)|\h+/', $sc)));
array_shift($args); // remove [csvtohtml
array_pop($args); // remove ]
$output = [];
foreach ($args as $arg) {
$explode = explode('=', $arg);
$key = array_shift($explode);
$value = str_replace('"', '', implode('=', $explode)); // remove str_replace if you want to keep the extra set of quotes
$output[$key] = $value;
}
print_r($output);
Results in
Array
(
[include_rows] => 1-10
[debug_mode] => no
[source_type] => guess
[path] => largecsv
[source_files] => test?output=csv
[csv_delimiter] => ,
)
You can match the attribute names and their values using
([^\s=]+)=(?|"([^"]*)"|(\S+))
See the regex demo. Details:
([^\s=]+) - Group 1: one or more chars other than whitespace and = chars= - an = sign(?|"([^"]*)"|(\S+)) - Branch reset group:
"([^"]*)" - ", then any zero or more chars other than " captured into Group 1, and then a "| - or(\S+) - Group 2: any one or more non-whitespace charsSee the PHP demo:
$sc = '[csvtohtml_create include_rows="1-10"
debug_mode="no" source_type="guess" path="largecsv"
source_files="test?output=csv" csv_delimiter="," ]';
if (preg_match_all('~([^\s=]+)=(?|"([^"]*)"|(\S+))~', $sc, $ms)) {
print_r(array_combine($ms[1],$ms[2]));
}
Output:
Array
(
[include_rows] => 1-10
[debug_mode] => no
[source_type] => guess
[path] => largecsv
[source_files] => test?output=csv
[csv_delimiter] => ,
)