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|search for string within a string using positions|
say i have a string like the following:
how can i extract just 999 here?
tried many fucntions but still no luck.thanks in advance!
oh by the way the length of the numeric part changes. so it can be 1 to n
sorry for postin again. to mk things easier i'v made the string as follows.
so i want to know how can i get the string in between the character 'c' and 'd'.
made this ma self. in case anyone needs here it is:
$start = strpos($string, "a");
$end = strpos($string, "b");
$length = strlen($string);
print "the start is ".$start." end is ".$end." the total length".$length."<br />";
$substr1 = substr($string, $start+1, $length);
print $substr1."<br />";
$new_length = strlen($substr1);
$num = $new_length-1;
//new length is 3
$substr2 = substr($substr1, -$new_length, $num);
Glad you got it sorted, but let me ask: are you after only the numeric part of this string?
$string = 'aaa12345vvvv';
$string = preg_replace('/[^\d]+/','',$string);
Basically this regexp says "replace one or more characters not (^) a digit with nothing."
This many have an unexpected result if the strings are not in the format you posted,
$string = 'aaa12345vv6789vv';
will result in
in my case i jst want 12345. so thats why i basically tried to get the values between aaa and vv(in ur example). thanks for the post
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