1.2.570. Indices Are Int Or String¶
Indices in an array notation such as
$array['indice']may only be integers or string.
Boolean, Null or float will be converted to their integer or string equivalent.
Decimal numbers are rounded to the closest integer; Null is transtyped to ‘’ (empty string); true is 1 and false is 0; Integers in strings are transtyped, while partial numbers or decimals are not analyzed in strings.
As a general rule of thumb, only use integers or strings that don't look like integers.
This analyzer may find constant definitions, when available.
Note also that PHP detects integer inside strings, and silently turn them into integers. Partial and octal numbers are not transformed.
<?php
$a = [true => 1,
1.0 => 2,
1.2 => 3,
1 => 4,
'1' => 5,
0.8 => 6,
0x1 => 7,
01 => 8,
null => 1,
'' => 2,
false => 1,
0 => 2,
'0.8' => 3,
'01' => 4,
'2a' => 5
];
print_r($a);
/*
The above displays
Array
(
[1] => 8
[0] => 2
[] => 2
[0.8] => 3
[01] => 4
[2a] => 5
)
*/
?>
See also Arrays syntax.
1.2.570.1. Suggestions¶
Do not use any type but string or integer
Force typecast the keys when building an array
1.2.570.2. Specs¶
Short name |
Structures/IndicesAreIntOrString |
Rulesets |
|
Exakat since |
0.8.4 |
PHP Version |
All |
Severity |
Major |
Time To Fix |
Quick (30 mins) |
Precision |
Very high |
Features |
array |
Examples |
|
Available in |