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27 gru 2011 · Integer size can be determined using the constant PHP_INT_SIZE, and maximum value using the constant PHP_INT_MAX since PHP 4.4.0 and PHP 5.0.5. ... If PHP encounters a number beyond the bounds of the integer type, it will be interpreted as a float instead.
Example. You want to return a price: One parameter will round the number (it will be formatted without decimals). Two parameters should give the result you want: <?php. $num = 1999.9; $formattedNum = number_format ($num)."<br>"; echo $formattedNum; $formattedNum = number_format ($num, 2); echo $formattedNum; ?> Try it Yourself »
16 gru 2011 · If you want the numerical value of a string and you don't want to convert it to float/int because you're not sure, this trick will convert it to the proper type: function get_numeric($val) { if (is_numeric($val)) { return $val + 0; } return 0; } Example: <?php get_numeric('3'); // int(3) get_numeric('1.2'); // float(1.2) get_numeric('3.0 ...
Example #1 number_format () Example. For instance, French notation usually use two decimals, comma (',') as decimal separator, and space (' ') as thousand separator. The following example demonstrates various ways to format a number: <?php.
If you want to convert a decimal (integer) number into constant length binary number in lets say 9 bits, use this: $binary = sprintf('%08b', $number ); for example: <?php $bin = sprintf ('%08b', 511 ); echo $bin. "\n";?> would output 111111111 And 2 would output 00000010 I know the leading zeros are useful to me, perhaps they are to someone ...
31 lip 2024 · The filter_var() function in PHP can be used to convert a string to a number by using the FILTER_SANITIZE_NUMBER_FLOAT or FILTER_SANITIZE_NUMBER_INT filter. This function is versatile and can handle various types of sanitization and validation.
intval (mixed $value, int $base = 10): int. Returns the int value of value, using the specified base for the conversion (the default is base 10). intval () should not be used on objects, as doing so will emit an E_WARNING level error and return 1.
