I have the following input string which consists of multiple lines:
BYTE $66,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$13,$14,$01,$19,$20,$01,$20,$17,$08,$09,$0C,$05,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$66 // comment
BYTE $66,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$66
I use the following preg_match statement to match the data part (so only the hexadecimal values) and not the preceding white space and text, nor the trailing white space and comment sections:
preg_match('/(\$.*?) /s', $sFileContents, $aResult);
The output is this:
output: Array
(
[0] => $66,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$13,$14,$01,$19,$20,$01,$20,$17,$08,$09,$0C,$05,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$66
[1] => $66,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$13,$14,$01,$19,$20,$01,$20,$17,$08,$09,$0C,$05,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$66
)
As you may be able to see, the match appears to be correct but the first input line is repeated twice. The 's' modifier should help me get past the end of line, but I cannot seem to get past the first line.
Does anyone have an idea of how to proceed?
You don't need s (DOTALL) flag for this. You can use:
preg_match_all('/(\$[0-9A-Fa-f]{2}(?:,\$[0-9A-Fa-f]{2})+)/', $input, $m);
print_r($m[1]);