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Return Value: The integer value of the variable on success, 0 on failure. An empty array will return 0, and a non-empty array will return 1. Return Type: Integer. PHP Version: 4.0+. PHP Changelog:
27 gru 2011 · $var = rand(0,PHP_INT_MAX).str_pad(rand(0, 999999999), 9, 0, STR_PAD_LEFT); echo $var; On a platform in which PHP uses a 32 bit integer, this allows you to get a near random integer (as a string) that is bigger than 32 bits ( > 10 decimal places).
16 gru 2011 · If you want the numerical value of a string and you don't want to convert it to float/int because you're not sure, this trick will convert it to the proper type: function get_numeric($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 ...
intval converts doubles to integers by truncating the fractional component of the number. When dealing with some values, this can give odd results. Consider the following: print intval ((0.1 + 0.7) * 10); This will most likely print out 7, instead of the expected value of 8.
If you want to convert a string automatically to float or integer (e.g. "0.234" to float and "123" to int), simply add 0 to the string - PHP will do the rest. e.g. $val = 0 + "1.234";
Get the string value of a variable. See the documentation on string for more information on converting to string. This function performs no formatting on the returned value. If you are looking for a way to format a numeric value as a string, please see sprintf () or number_format ().
9 sty 2024 · You can use operators or settype() to convert string to int or float implicitly. Here’s a quick example: $string = '42'; $number = (int)$string; // $number is now an integer (42)
