PHP Developers Cookbook (2nd Edition)
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ucfirst() function ucwords() function 2nd UDP clients , creating 2nd 3rd UDP servers, creating 2nd underscore (_) uniform resource locators “ \t “ [See URLs]2nd [See URLs] union of arrays, calculating uniqid{} function unique identifiers, creating Unique Random class 2nd universaltime() function 2nd UNIX deleting files times associated with files UNIX domain sockets, connecting with 2nd UNIX, converting script using PHP 2nd unlink() function 2nd 3rd unpack() function 2nd 3rd 4th 5th 6th 7th 8th unregistering session variables 2nd unserialize() function 2nd 3rd unset() function 2nd updating random-access files 2nd urldecode() function urlencode () function URLs extracting 2nd fetching 2nd 3rd parsing 2nd user interaction with user-defined functions accessing variables outside of 2nd calling indirectly 2nd declaring dynamically dynamically creating anonymous type 2nd fetching arbitrary number of parameters 2nd overview of 2nd 3rd passing arguments by reference 2nd 3rd passing default value to 2nd 3rd retaining variable •s value between function calls 2nd returning more than one value from functions 2nd returning values from 2nd users displaying textfiles to 2nd usleep() function 2nd usort() function 2nd 3rd 4th 5th UUCP (UNIX-to-UNIX copy)
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