How to display floating point number from table show as digit format [duplicate]

Question

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Why is PHP printing my number in scientific notation, when I specified it as .000021? (8 answers)

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In my table i have the record value 0.0000009 like this since i run my program i got result like this 9.0E-7. But i need to display 0.0000009 this format.

<?php echo $a=0.0000009; ?>

Kindly guide me

Answer 1

You can use formatting print, %f means that you bind float value, "1" symbols before point, "8" after point:

echo sprintf('%1.8f', 0.00000009);