"val1"key2"=>"val2 foreach($array as $key=>$val To print an array(pre tags to keep ">

info230review - INFO 230 Midterm Review Arrays $array=...

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INFO 230 Midterm Review Arrays: $array= array("key1"=>"val1", "key2"=>"val2"); foreach ($array as $key=>$val){ } To print an array (pre tags to keep nice formatting and indents): <pre> print_r($array); </pre> PHP functions: Defining your own function: $string=”apple”; $string2= reverse(“apple”); Function reverse ($value1, …) { //PHP code here Return $value1; } Isset String functions: trim, strtoupper, strtolower, split, join $array = split(“,” “ab, c, de, f”); Htmlentities and checking user input Regular expressions: Ereg(‘[fgh]’, “hello world”) = true * = zero or more + = one or more | = or ^ = starting $ = ending . = character classes (e.g. [0-9]) [A-Z]* = zero or more [a-z]+ = one or more [0-9]{5,7} = 5 to 7 numbers in string (can be letters, etc) ^[0-9]{5}$ = only 5 numbers in string, no letters, etc. ereg_replace(string to be replaced, replacement string, whole string) $str = ereg_replace(‘p’, ‘t’, “apple”) = attle $str = ‘c’ . $str (=cattle) Files and file functions : Fopen
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Fputs Fgets Feof File $handle = fopen(“file.txt”, ‘r’); fread($handle, $length) or while ( Cookies and Sessions :
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  • Spring '08
  • Relational model, Foreign key, Isset String functions

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