Learning PHP, MySQL, JavaScript, and CSS, 2nd Edition

Index

A note on the digital index

A link in an index entry is displayed as the section title in which that entry appears. Because some sections have multiple index markers, it is not unusual for an entry to have several links to the same section. Clicking on any link will take you directly to the place in the text in which the marker appears.

Symbols

! (exclamation mark)

!= (not equal to) operator in JavaScript, Comparison Operators

!= (not equal to) operator in PHP, Comparison operators, Operator Precedence

!== (not identical) operator in JavaScript, Comparison Operators

!== (not identical) operator in PHP, Operator Precedence

!important declaration in CSS rules, Some rules are more equal than others

inequality and not identical operators, Equality operators

logical NOT operator in JavaScript, Logical Operators, Logical operators

logical NOT operator in PHP, Logical operators, Operator Precedence, Logical operators, Breaking Out of a Loop

associativity, Associativity

" " (quotation marks, double)

enclosing JavaScript strings, String Variables

escaping in JavaScript, Escaping Characters

in PHP strings, String types

escaping characters in, Escaping characters

multiple lines between quotes, Multiple-Line Commands

# (hash mark or pound sign), prefacing element IDs in CSS, Using Classes

$ (dollar sign)

$( ) function in JavaScript, Another use for the $, Revisiting the getElementById Function

$this variable in PHP, Writing Methods

$_GET and $_POST arrays in PHP, extract

end-of-line matching in regular expressions, ...