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archived-php-src/ext/standard/tests/math/sqrt_variation.phpt
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Nikita Popov b10416a652 Deprecate passing null to non-nullable arg of internal function
This deprecates passing null to non-nullable scale arguments of
internal functions, with the eventual goal of making the behavior
consistent with userland functions, where null is never accepted
for non-nullable arguments.

This change is expected to cause quite a lot of fallout. In most
cases, calling code should be adjusted to avoid passing null. In
some cases, PHP should be adjusted to make some function arguments
nullable. I have already fixed a number of functions before landing
this, but feel free to file a bug if you encounter a function that
doesn't accept null, but probably should. (The rule of thumb for
this to be applicable is that the function must have special behavior
for 0 or "", which is distinct from the natural behavior of the
parameter.)

RFC: https://wiki.php.net/rfc/deprecate_null_to_scalar_internal_arg

Closes GH-6475.
2021-02-11 21:46:13 +01:00

48 lines
813 B
PHP

--TEST--
Test variations in usage of sqrt()
--INI--
precision = 14
--FILE--
<?php
/*
* Function is implemented in ext/standard/math.c
*/
//Test sqrt with a different input values
echo "*** Testing sqrt() : usage variations ***\n";
$values = array(23,
-23,
2.345e1,
-2.345e1,
0x17,
027,
"23",
"23.45",
"2.345e1",
"1000",
true,
false);
for ($i = 0; $i < count($values); $i++) {
$res = sqrt($values[$i]);
var_dump($res);
}
?>
--EXPECT--
*** Testing sqrt() : usage variations ***
float(4.795831523312719)
float(NAN)
float(4.8425200051213)
float(NAN)
float(4.795831523312719)
float(4.795831523312719)
float(4.795831523312719)
float(4.8425200051213)
float(4.8425200051213)
float(31.622776601683793)
float(1)
float(0)