Re: [PHP] Reg Exp help needed
On 24-Jun-2003 Sparky Kopetzky wrote:
I'm translating (hacking) code from Perl to PHP and have two reg exp
expressions I can't figure out what they do.
1st: $goodbadnum =~ tr/0-9//cd; I think this one removes any chars that
are not numbers.
Nope. That removes digits '0-9'
$goodbadnum= preg_replace('!\d+!', '', $goodbadnum);
2nd: $goodbadnum =~ tr/0-9/x/; I think this one replaces and numbers with
an 'x'.
Yep. that replaces every digit with an 'x'.
$goodbadnum= preg_replace('!\d!', 'x', $goodbadnum);
Regards,
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RE: [PHP] Reg Exp Help
The password and int_id begin and end in fixed positions. password begins in position 13 and can occupy up to 8 characters int_id begins in position 21 and can occupy up to 4 characters Sometimes a password (or int_id) may occupy all of those fixed position or only some of the fixed positions, it's variable. Zach -Original Message- From: Edward van Bilderbeek - Bean IT [mailto:[EMAIL PROTECTED]] Sent: Friday, January 25, 2002 9:58 AM To: Zach Curtis Subject: Re: [PHP] Reg Exp Help how can I see that it isn't a 6 char $password with a 3 char $int_id ?? This one has a 8 character $password, followed by zero white spaces, followed by a single character $int_id 7d2ad345b Edward - Original Message - From: Zach Curtis [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Friday, January 25, 2002 5:51 PM Subject: [PHP] Reg Exp Help I am trying to code a regular expression that will match at the beginning of the string the contents of $password, followed by 0 or more occurrences of white space, followed by the contents of $int_id. The match should be case insensitive. Here are some examples of the strings: This one has a 6 character $password, followed by two white spaces, followed by a single character $int_id 9a9b9c z This one has a 8 character $password, followed by zero white spaces, followed by a single character $int_id 7d2ad345b This one has a 5 character $password, followed by three white spaces, followed by a four character $int_id d22ad bbaw Here is the regular expression I am trying to use that does not find the match and produces Warning: REG_BADRPT. (eregi(^\$password+[[:space:]]*+\$int_id, $file_array[$i])) Any corrections? Thanks in advance. Zach Curtis POPULUS -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
RE: [PHP] Reg Exp Help
Hmmm. I am searching thru a flat file that has been loaded into an array ($file_array[$i]). As each iteration of the array is loaded (each row of the flat file) , I was trying to search for this unique combination. The $password is not unique. And $int_id is not unique enough (e.g., a, b, c, etc.) to be searched for on its own. However, $password and $int_id joined together is unique. Also, the $password and $int_id are in a fixed position in each header row, however, not every row in the flat file is a header row (no...I didn't create a flat file in this way!). I am confident the correct regular expression would resolve this. I will keep thinking about substr() and trim(), but I don't see how to use those to resolve this issue. Zach -Original Message- From: Edward van Bilderbeek - Bean IT [mailto:[EMAIL PROTECTED]] Sent: Friday, January 25, 2002 10:29 AM To: Zach Curtis Subject: Re: [PHP] Reg Exp Help but if the positions as fixed, why don't you use the substr, and then trim th result? Edward - Original Message - From: Zach Curtis [EMAIL PROTECTED] To: Edward van Bilderbeek - Bean IT [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Sent: Friday, January 25, 2002 6:12 PM Subject: RE: [PHP] Reg Exp Help The password and int_id begin and end in fixed positions. password begins in position 13 and can occupy up to 8 characters int_id begins in position 21 and can occupy up to 4 characters Sometimes a password (or int_id) may occupy all of those fixed position or only some of the fixed positions, it's variable. Zach -Original Message- From: Edward van Bilderbeek - Bean IT [mailto:[EMAIL PROTECTED]] Sent: Friday, January 25, 2002 9:58 AM To: Zach Curtis Subject: Re: [PHP] Reg Exp Help how can I see that it isn't a 6 char $password with a 3 char $int_id ?? This one has a 8 character $password, followed by zero white spaces, followed by a single character $int_id 7d2ad345b Edward - Original Message - From: Zach Curtis [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Friday, January 25, 2002 5:51 PM Subject: [PHP] Reg Exp Help I am trying to code a regular expression that will match at the beginning of the string the contents of $password, followed by 0 or more occurrences of white space, followed by the contents of $int_id. The match should be case insensitive. Here are some examples of the strings: This one has a 6 character $password, followed by two white spaces, followed by a single character $int_id 9a9b9c z This one has a 8 character $password, followed by zero white spaces, followed by a single character $int_id 7d2ad345b This one has a 5 character $password, followed by three white spaces, followed by a four character $int_id d22ad bbaw Here is the regular expression I am trying to use that does not find the match and produces Warning: REG_BADRPT. (eregi(^\$password+[[:space:]]*+\$int_id, $file_array[$i])) Any corrections? Thanks in advance. Zach Curtis POPULUS -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
RE: [PHP] Reg Exp Help
Here is part of my actual code, if that makes any difference.
$password // this var was retrieved from db
$int_id // this var was retrieved from db
$file_array = file($DOCUMENT_ROOT/dir/file.dat);
$count = count($file_array);
if ($count == 0)
echo pNo records found in .dat file./p;
for ($i = 0; $i $count; $i++)
{
if (eregi(^\$password+[[:space:]]*+\$int_id, $file_array[$i]))
{
// do stuff
}
}
Zach
-Original Message-
From: Edward van Bilderbeek - Bean IT [mailto:[EMAIL PROTECTED]]
Sent: Friday, January 25, 2002 10:29 AM
To: Zach Curtis
Subject: Re: [PHP] Reg Exp Help
but if the positions as fixed, why don't you use the substr, and then trim
th result?
Edward
- Original Message -
From: Zach Curtis [EMAIL PROTECTED]
To: Edward van Bilderbeek - Bean IT [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Sent: Friday, January 25, 2002 6:12 PM
Subject: RE: [PHP] Reg Exp Help
The password and int_id begin and end in fixed positions.
password begins in position 13 and can occupy up to 8 characters
int_id begins in position 21 and can occupy up to 4 characters
Sometimes a password (or int_id) may occupy all of those fixed position or
only some of the fixed positions, it's variable.
Zach
-Original Message-
From: Edward van Bilderbeek - Bean IT [mailto:[EMAIL PROTECTED]]
Sent: Friday, January 25, 2002 9:58 AM
To: Zach Curtis
Subject: Re: [PHP] Reg Exp Help
how can I see that it isn't a 6 char $password with a 3 char $int_id ??
This one has a 8 character $password, followed by zero white spaces,
followed by a single character $int_id
7d2ad345b
Edward
- Original Message -
From: Zach Curtis [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, January 25, 2002 5:51 PM
Subject: [PHP] Reg Exp Help
I am trying to code a regular expression that will match at the
beginning
of
the string the contents of $password, followed by 0 or more occurrences
of
white space, followed by the contents of $int_id. The match should be
case
insensitive.
Here are some examples of the strings:
This one has a 6 character $password, followed by two white spaces,
followed
by a single character $int_id
9a9b9c z
This one has a 8 character $password, followed by zero white spaces,
followed by a single character $int_id
7d2ad345b
This one has a 5 character $password, followed by three white spaces,
followed by a four character $int_id
d22ad bbaw
Here is the regular expression I am trying to use that does not find the
match and produces Warning: REG_BADRPT.
(eregi(^\$password+[[:space:]]*+\$int_id, $file_array[$i]))
Any corrections? Thanks in advance.
Zach Curtis
POPULUS
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RE: [PHP] Reg Exp Help
YES! I was working that out as well.
One correction though, this line should read:
$temp_int_id = trim(substr($file_array[$i], 21, 4));
I guess the lesson learned is to use substr() when the length of the $string
is fixed. Since I have to use substr() and trim() twice, I wonder if this
has more or less overhead than a single regular expression?
Thank you.
Zach
-Original Message-
From: Edward van Bilderbeek - Bean IT [mailto:[EMAIL PROTECTED]]
Sent: Friday, January 25, 2002 11:36 AM
To: Zach Curtis
Subject: Re: [PHP] Reg Exp Help
You said:
The password and int_id begin and end in fixed positions.
password begins in position 13 and can occupy up to 8 characters
int_id begins in position 21 and can occupy up to 4 characters
Sometimes a password (or int_id) may occupy all of those fixed position or
only some of the fixed positions, it's variable.
so that would make the code like this:
Here is part of my actual code, if that makes any difference.
$password // this var was retrieved from db
$int_id // this var was retrieved from db
$file_array = file($DOCUMENT_ROOT/dir/file.dat);
$count = count($file_array);
if ($count == 0)
echo pNo records found in .dat file./p;
for ($i = 0; $i $count; $i++)
{
$temp_pass = trim(substr($file_array[$i], 13, 8));
$temp_int_id = trim(substr, $file_array[$i], 21, 4));
if ($temp_pass == $password $temp_int_id == $int_id)
{
// do stuff
}
}
Zach
-Original Message-
From: Edward van Bilderbeek - Bean IT [mailto:[EMAIL PROTECTED]]
Sent: Friday, January 25, 2002 10:29 AM
To: Zach Curtis
Subject: Re: [PHP] Reg Exp Help
but if the positions as fixed, why don't you use the substr, and then trim
th result?
Edward
- Original Message -
From: Zach Curtis [EMAIL PROTECTED]
To: Edward van Bilderbeek - Bean IT [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Sent: Friday, January 25, 2002 6:12 PM
Subject: RE: [PHP] Reg Exp Help
The password and int_id begin and end in fixed positions.
password begins in position 13 and can occupy up to 8 characters
int_id begins in position 21 and can occupy up to 4 characters
Sometimes a password (or int_id) may occupy all of those fixed position
or
only some of the fixed positions, it's variable.
Zach
-Original Message-
From: Edward van Bilderbeek - Bean IT [mailto:[EMAIL PROTECTED]]
Sent: Friday, January 25, 2002 9:58 AM
To: Zach Curtis
Subject: Re: [PHP] Reg Exp Help
how can I see that it isn't a 6 char $password with a 3 char $int_id ??
This one has a 8 character $password, followed by zero white spaces,
followed by a single character $int_id
7d2ad345b
Edward
- Original Message -
From: Zach Curtis [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, January 25, 2002 5:51 PM
Subject: [PHP] Reg Exp Help
I am trying to code a regular expression that will match at the
beginning
of
the string the contents of $password, followed by 0 or more
occurrences
of
white space, followed by the contents of $int_id. The match should be
case
insensitive.
Here are some examples of the strings:
This one has a 6 character $password, followed by two white spaces,
followed
by a single character $int_id
9a9b9c z
This one has a 8 character $password, followed by zero white spaces,
followed by a single character $int_id
7d2ad345b
This one has a 5 character $password, followed by three white spaces,
followed by a four character $int_id
d22ad bbaw
Here is the regular expression I am trying to use that does not find
the
match and produces Warning: REG_BADRPT.
(eregi(^\$password+[[:space:]]*+\$int_id, $file_array[$i]))
Any corrections? Thanks in advance.
Zach Curtis
POPULUS
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[EMAIL PROTECTED]
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Re: [PHP] Reg. Exp. Help
I really need help with this.
I have written a regular expression that searches for any occurance of
src="*" in a html page and rewrites it so that it is equal to
src="http://www.whereever.com/images/filename.jpg" -
If there are five occurances of this match then it replaces them all. Is
there anyway to make it only run once. Then if I want to loop and do it
again. I want to do this so I can put the contents of the original * in
src="*" into and array and access them later for uploading the files.
I think that maybe preg_match() or preg_match_all() is the answer but I have
know idea on how to make the regular expression I am using perl comptaible.
Here it is:
$txt = ereg_replace("src=\"([^]+)\.(gif|jpg)\"",
"src=\"http://www.ezigraphics.com/images/about_0001." . //2. "\"", $txt);
Any ideas is a huge help - thankyou
Thanks
Scott Mebberson
[EMAIL PROTECTED]
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