Formats the value as a scientific number.
| public asScientific ( mixed $value, integer $decimals = null, array $options = [], array $textOptions = [] ) : string | ||
| $value | mixed | the value to be formatted. |
| $decimals | integer | the number of digits after the decimal point. |
| $options | array | optional configuration for the number formatter. This parameter will be merged with [[numberFormatterOptions]]. |
| $textOptions | array | optional configuration for the number formatter. This parameter will be merged with [[numberFormatterTextOptions]]. |
| 리턴 | string | the formatted result. |
public function testAsScientific()
{
$value = '123';
$this->assertSame('1.23E2', $this->formatter->asScientific($value));
$value = '123456';
$this->assertSame("1.23456E5", $this->formatter->asScientific($value));
$value = '-123456.123';
$this->assertSame("-1.23456123E5", $this->formatter->asScientific($value));
$this->assertSame($this->formatter->nullDisplay, $this->formatter->asScientific(null));
}
public function testAsScientific()
{
if (defined('HHVM_VERSION')) {
// the default format is different on HHVM
$this->markTestSkipped('HHVM behaves quite different in the default patterns used for formatting.');
}
$value = '123';
$this->assertSame('1.23E2', $this->formatter->asScientific($value));
$value = '123456';
$this->assertSame("1.23456E5", $this->formatter->asScientific($value));
$value = '-123456.123';
$this->assertSame("-1.23456123E5", $this->formatter->asScientific($value));
$this->assertSame($this->formatter->nullDisplay, $this->formatter->asScientific(null));
}
public function testAsScientific()
{
$value = '123';
$this->assertSame('1.23E+2', $this->formatter->asScientific($value, 2));
$value = '123456';
$this->assertSame("1.234560E+5", $this->formatter->asScientific($value));
$value = '-123456.123';
$this->assertSame("-1.234561E+5", $this->formatter->asScientific($value));
// empty input
$this->assertSame("0.000000E+0", $this->formatter->asScientific(false));
$this->assertSame("0.000000E+0", $this->formatter->asScientific(""));
// null display
$this->assertSame($this->formatter->nullDisplay, $this->formatter->asScientific(null));
}