asin

Function • Params and return types changed in PHP 8.0

Arc sine.

PHP 5
PHP 7
PHP 8.0
Improved
PHP 8.1
PHP 8.2-8.3
PHP 8.4
PHP 8.5
PHP 8.6

asin Function synopsis

asin(float $num): float

Parameters

$num

Typefloat

The argument to process

Return value

Typefloat

The arc sine of $num in radians

Changes to the asin Function

PHP 8.0

  • Return type added: float
  • Parameter name of parameter #1 changed: $number to $num
  • Parameter type added for parameter #1 ($num): float
- asin($number)
+ asin(float $num): float

asin Function Availability

PHP VersionAvailability
PHP 8.6Upcoming Release Yes
PHP 8.5Supported (Latest) Yes
PHP 8.4Supported Yes
PHP 8.3Security-Fixes Only Yes
PHP 8.2Security-Fixes Only Yes
PHP 8.1Unsupported Yes
PHP 8.0Unsupported Yes
PHP 7.4Unsupported Yes
PHP 7.3Unsupported Yes
PHP 7.2Unsupported Yes
PHP 7.1Unsupported Yes
PHP 7.0Unsupported Yes
PHP 5.6Unsupported Yes
PHP 5.5Unsupported Yes
PHP 5.4Unsupported Yes
PHP 5.3Unsupported Yes