PHP abs() Function
The PHP abs() function returns the absolute value of a specified number as its parameter. For example:
<?php $x = 10; echo abs($x); echo "<br>"; $x = -10; echo abs($x); echo "<br>"; $x = 0; echo abs($x); echo "<br>"; ?>
The output of above PHP example, is:
Note - Absolute value is the distance from zero along real number line. Therefore, we can say that an absolute value of a number is its non-negative form.
The same (previous) program can also be created in this way:
<?php echo abs(10)."<br>"; echo abs(-10)."<br>"; echo abs(0)."<br>"; ?>
You will get exactly same output as of previous one.
PHP abs() Function Syntax
The syntax of abs() function in PHP, is:
The value of x may be an integer or a floating-point number.
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