Formatting Strings with PHPWorking with printf()printf() and Type SpecifiersPadding Output with the Padding SpecifierSpecifying a Field WidthSpecifying PrecisionConversion Specifications: A RecapArgument SwappingStoring a Formatted StringInvestigating Strings in PHPA Note About Indexing StringsFinding the Length of a String with strlen()Finding a Substring Within a String with strstr()Finding the Position of a Substring with strpos()Extracting Part of a String with substr()Tokenizing a String with strtok()Manipulating Strings with PHPCleaning Up a String with trim(), ltrim(), and strip_tags()Replacing a Portion of a String Using substr_replace()Replacing Substrings Using str_replaceConverting CaseWrapping Text with wordwrap() and nl2br()Breaking Strings into Arrays with explode()Using Date and Time Functions in PHPGetting the Date with time()Converting a Timestamp with getdate()Converting a Timestamp with date()Creating Timestamps with mktime()Testing a Date with checkdate()SummaryQ&AWorkshopQuizAnswersActivities