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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 ...
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).
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 $formattedNum; ?> Try it Yourself »
Example #1 number_format () Example. For instance, French notation usually use two decimals, comma (',') as decimal separator, and space (' ') as thousand separator. The following example demonstrates various ways to format a number: <?php.
A helper class to convert integer to binary strings and vice versa. Useful for writing and reading integers to / from files or sockets. <?php class int_helper {public static function int8 ($i) {return is_int ($i) ? pack ("c", $i) : unpack ("c", $i)[1];} public static function uInt8 ($i) {return is_int ($i) ? pack ("C", $i) : unpack ("C", $i)[1];}
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. Example: This example illustrates converting a string into a number in PHP using the filter_var ...
To create a form, you use the <form> element as follows: <form action="form.php" method="post"> </form> Code language: HTML, XML (xml) The <form> element has two important attributes: action: specifies the URL that processes the form submission. In this example, the form.php will process the form.
