<?php
function which_is_lower($a, $b)
{
if ( $a < $b )
{
return $a;
}
else
{
return $b;
}
}
function compare_comparisons($a, $b)
{
echo 'min() gives: ';
var_dump( min($a, $b) );
echo 'comparison with < gives: ';
var_dump( which_is_lower($a, $b) );
}
echo "\n", '-1 vs NULL: ', "\n";
compare_comparisons(-1, NULL);
echo "\n", '1 vs NULL: ', "\n";
compare_comparisons(1, NULL);
echo "\n", '-1 vs FALSE: ', "\n";
compare_comparisons(-1, FALSE);
echo "\n", '1 vs FALSE: ', "\n";
compare_comparisons(1, FALSE);
echo "\n", '-1 vs TRUE: ', "\n";
compare_comparisons(-1, TRUE);
echo "\n", '1 vs TRUE: ', "\n";
compare_comparisons(1, TRUE);
- Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.12 - 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
- -1 vs NULL:
min() gives: NULL
comparison with < gives: NULL
1 vs NULL:
min() gives: NULL
comparison with < gives: NULL
-1 vs FALSE:
min() gives: bool(false)
comparison with < gives: bool(false)
1 vs FALSE:
min() gives: bool(false)
comparison with < gives: bool(false)
-1 vs TRUE:
min() gives: int(-1)
comparison with < gives: bool(true)
1 vs TRUE:
min() gives: int(1)
comparison with < gives: bool(true)
preferences:
260.24 ms | 406 KiB | 350 Q