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split -           This function divides strings based on the pattern that it searches for and stored the separated text into an array. The searches are case-sensitive when dealing with alphabetical characters. <?php $csv_text = "5, \"Amsterdam\", \"NLD\", \"Noord-Holland\", 731200"; $csv_array = split("[,]",$csv_text); foreach ($csv_array as $csv_column) { print "$csv_column<br>"; } ?> The script above would create an array called $csv_row that contains the following element: [0] = 5, [1]="Amsterdam", [2]="NLD", [3]="Noord-Holland", [4]=731200). The foreach iterative control statement would print each of these elements on the screen on their own lines. A third component can be placed in the split function that would limit the number of array elements that would be created. By adding 3 to the split function in the above script (split("[,]",$csv_text, 3) the

• ereg_replace()-                          This function is equivalent to ereg() in its case-sensitive searching capabilities; however, it adds the ability to replace the characters it is searching for with new characters instead of just simply locating them. If the search pattern is not found, the string it searched against is unchanged. <?php $url = "MySQL http://www.mysql.com"; print ereg_replace("http://([a-zA-Z0-9./-]+)$", "<a href=\"\\0\">\\0</a>", $url); ?> The script above would change the text "MySQL http://www.mysql.com" to "MySQL <a href="http://www.mysql.com">http://www.mysql.com</a>". This change would allow the http reference to be replaced with the HTML code required to create a web link. The three components of this function include the pattern to search for ("http://([a-zA-Z0-9./-]+)$"), the replacement string ("<a href=\"\\0\&qu