<?php
function is_assoc($var) {
return is_array($var) && array_diff_key($var,array_keys(array_keys($var)));
}
$a = [1, 2, 3, 4, 5];
$b = ['a', 'b', 'c'];
$c = ['a' => 1, 'b' => 2, 'c' => 3];
$d = [0 => 1, 1 => 2, 2 => 3];
$e = [1 => 1, 2 => 2, 3 => 3];
$f = [0 => 1, 1 => 2, 2 => 3, 'a' => 4];
$g = 'foo';
$h = 123;
var_dump(array_keys($a));
echo '$a ';
var_dump(is_assoc($a));
echo '$b ';
var_dump(is_assoc($b));
echo '$c ';
var_dump(is_assoc($c));
echo '$d ';
var_dump(is_assoc($d));
echo '$e ';
var_dump(is_assoc($e));
echo '$f ';
var_dump(is_assoc($f));
echo '$g ';
var_dump(is_assoc($g));
echo '$h ';
var_dump(is_assoc($h));
- Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
- array(5) {
[0]=>
int(0)
[1]=>
int(1)
[2]=>
int(2)
[3]=>
int(3)
[4]=>
int(4)
}
$a bool(false)
$b bool(false)
$c bool(true)
$d bool(false)
$e bool(true)
$f bool(true)
$g bool(false)
$h bool(false)
- Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
- Parse error: syntax error, unexpected '[' in /in/Ldlsb on line 7
Process exited with code 255. - Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
- Parse error: parse error, unexpected '[' in /in/Ldlsb on line 7
Process exited with code 255. - Output for 4.3.2 - 4.3.4
- Parse error: parse error in /in/Ldlsb on line 7
Process exited with code 255.
preferences:
208.36 ms | 401 KiB | 336 Q