Truncate String
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Tue. Sep. 26th, 2006 1:13 PM
The modus operandi for this is similar to that taken by PHP's implementation of such functions. It's comparitively memory-intensive, but is much faster than running a whole bunch of tests.
Basically, you set a mask -- an array of 256 null bytes -- and set those that correspond to characters you wish to trim. Then, rather than having to test if a character is in the set of characters to trim(O(n), or linear time on *ws), you just test once (O(1), or unit time) to see if the byte in question is set.
And of course, to trim(), you just wrap trim() around both ltrim() and rtrim().
One point of caution: these functions trim in place, so copy strings before trimming them. (Of course, if you usually want access to both pre- and post-trimmed strings, you could always make these malloc() a new string and return a pointer to it . . . )
Basically, you set a mask -- an array of 256 null bytes -- and set those that correspond to characters you wish to trim. Then, rather than having to test if a character is in the set of characters to trim(O(n), or linear time on *ws), you just test once (O(1), or unit time) to see if the byte in question is set.
And of course, to trim(), you just wrap trim() around both ltrim() and rtrim().
One point of caution: these functions trim in place, so copy strings before trimming them. (Of course, if you usually want access to both pre- and post-trimmed strings, you could always make these malloc() a new string and return a pointer to it . . . )
12
Generates select boxes, text boxes, check boxes and radio buttons. Via a handful of functions.
15
Generates a tree view within a dropdown select box.
26
This is a simple function to generate a random ID of letters and numbers however long you want. All you do is pass it how many parts you want and then how many pieces(chars/numbers) per part you want.
I hope you enjoy
I hope you enjoy
5
Returns an array of folder/file names in the specified path.
9
Generates an 88 character secure hash string for the passed in strings.
13
This little function will split an e-mail address passed to it at the @ sign, and make sure that there is a valid e-mail server at the other end =)
11
This will give you CheckDNSRR functionality in windows.
This function is only natively available in php while running on Linux.
This function is only natively available in php while running on Linux.
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Here is a pair of function to use in combination. The first one will change newlines into tags to store into a database. The second one does the reverse so you can edit the content of the database without having the tags show when you edit the content. If you can find improvements or have comments please let me know 
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For those times you need to do a loop in PHP, but have the outcome be in descending order (ie, start at 10 and end at 1).
