[SYMBOL]
[A]
[B]
[C]
[D]
[E]
[F]
[G]
[H]
[I]
[J]
[K]
[L]
[M]
[N]
[O]
[P]
[Q]
[R]
[S]
[T]
[U]
[V]
[W]
[X]
[Y]
[Z]
! flag
$
(dollar character)
back references
$_COOKIE array
$_ENV array
$_FILES array
2nd
3rd
$_GET array
$_GLOBALS array
$_POST array
$_REQUEST array
$_SERVER array
2nd
elements
2nd
looping through
2nd
$counter variable)
% (percent symbol)
conversion specfication
conversion specification
( flag
(#) hash sign
(') single quotation mark
strings
2nd
(") double quotation marks
strings
2nd
escape characters
(.) single period
(//) forward slashes
(;)
semicolon
(\) backslash character
2nd
(greater than) (greater than sign)
XML tags
(less than) (less than sign)
XML tags
(pipe character)
back references
(pipe) (pipe character)
branches
* (asterisk)
string pattern matching quantifier
+ (plus sign)
string pattern matching quantifier
+ flag
- (minus symbol)
field width specifiers
- flag
-(greater than) operator
object properties
=n flag
? (question mark)
string pattern matching quantifier
? operator
2nd
@ (at character)
DocBlocks
[] (square brackets)
array identifiers
2nd
character classes
\ (backslash)
regular expressions
^ (caret)
character negation
^ flag
_autoload() function
2nd
_call() function
function calls, intercepting
2nd
_construct() method
_destruct() function
objects, cleaning up
2nd
_get() function
property access, intercepting
2nd
_set() function
property access, intercepting
2nd
_sleep() function
_wakeup() function
` (backticks)
external commands, running
{,n}
string pattern matching quantifier
{n,}
string pattern matching quantifier
{n}
string pattern matching quantifier
{n1,n2}
string pattern matching quantifier
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