0-INTRODUCTION
1-CODIFICATION
2-About PHP errors
3-About PHP types
4-phpinfo
5-Vision on VARIABLES
6-Vision on CONSTANTS
7-Magical Constants
8-STRING
9-BOOLEAN
10-NULL
11-NUMERIC
12-ARRAY
13-RESOURCE
14-OBJECT
15-define
16-echo
17-print
18-print_r
19-count
20-var_dump
21-var_export
22-get_defined_vars
23-constant
24-get_defined_constants
25-defined
26-if...elseif...else
27-is_string
28-is_numeric
29-is_int
30-getrandmax
31-rand
32-mt_getrandmax
33-mt_rand
34-srand
35-mt_srand
36-is_float
37-is_bool
38-is_array
39-is_null
40-is_nan
41-USER-DEFINED Functions
42-FUNDAMENTAL OPERATIONS
43-switch
44-match
45-for
46-foreach
47-while
48-do...while
49-goto
50-get_loaded_extensions
51-extension_loaded
52-get_extension_funcs
53-phpversion
54-zend_version
55-phpcredits
56-php_uname
57-php_sapi_name
58-php_ini_scanned_files
59-php_ini_loaded_file
60-parse_url
61-getservbyport
62-getservbyname
63-getprotobynumber
64-getprotobyname
65-is_scalar
66-gettype
67-settype
68-isset
69-unset
70-empty
71-strval
72-strlen
73-intval
74-floatval
75-boolval
76-setlocale
77-timezone_identifiers_list
78-timezone_abbreviations_list
79-date_default_timezone_set
80-date_default_timezone_get
81-timezone_name_get
82-time
83-timezone_transitions_get
84-timezone_version_get
85-localeconv
86-nl_langinfo
RESOURCE
Is a special variable, holding a reference to an external RESOURCE.
A
RESOURCE
is created and used by special
PHP
functions.
RESOURCE
can have, for example, one of the following assignments:
a) Opening of files.
b) Images canvas - ( until PHP 7.4.XX. )
c) Connections with data banks.
However, we have a special chapter ...
... to study RESOURCES in more detail
☰
☰
RESOURCE