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  ab and ab+ modes for fopen( ) 
		   abs( ) 
		   activating sessions 
		   Adabas D PHP extension 
		   addresses (email), validating 
		   affectedRows( ) 
		   allow_url_fopen configuration directive 
		   anchors and regular expressions 
		   AND WHERE clause operator 
		   answers to exercises     Appendix B 
		       Chapter 10 
		       Chapter 11 
		       Chapter 12 
		       Chapter 2 
		       Chapter 3 
		       Chapter 4 
		       Chapter 5 
		       Chapter 6 
		       Chapter 7 
		       Chapter 8 
		       Chapter 9 
		   Apache     configuring 
		       installing on         Linux 
		           OS X 
		           Windows 
		       stopping 
		   Applied Cryptography 
		  2nd 
		   arguments 
		       changing values of 
		       default values for 
		       mandatory vs. optional 
		       multiple, in functions 
		       passing to functions 
		   arithmetic operators in PHP 
		   array variables in PHP 
		   array( )     arrays, creating 
		       multidimensional arrays, creating 
		       numeric arrays, creating 
		   array_key_exists( ) 
		  2nd 
		   array_search( ) 
		   arrays 
		       checking for         elements with particular keys 
		           elements with particular values 
		       choosing names for 
		       creating 
		           using explode( ) 
		           using preg_split( ) 
		       finding elements of, using preg_grep( ) 
		       generating XML from 
		       including in debugging output 
		       interpolating element values in double-quoted strings 
		       looping through 
		       modifying 
		       multidimensional 
		           forms and 
		       multiple values in form elements 
		       numeric arrays, creating 
		       removing elements from 
		       returning from functions 
		       size of, finding 
		       sorting 
		       with string keys, retrieving rows as 
		       turning into strings 
		   arrow (->) operator 
		   arsort( ) 
		   asort( ) 
		   assignment operator (=)     assigning return values to variables 
		       assigning values to variables 
		       combining with arithmetic and string operators 
		       with function call in test expression 
		       truth values and 
		       vs. equality operator (==) 
		   associative arrays 
		       multidimensional, iterating through 
		       sorting by element values 
		   asXML( ) 
		   auto-global array variables 
		  2nd 
		  3rd 
		  [See also $_POST auto-global array] auto_append_file configuration directive 
		   auto_prepend_file configuration directive 
		   automatic error handling 
		  
 
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