Re: [PHP4BETA] is string numeric

LI. Variable functions Table of Contents gettype - Get the type of a variable. intval - Get integer value of a variable. doubleval - Get double value of a variable. empty - determine whether a variable is set is_array - Finds whether a variable is an array. is_double - Finds whether a variable is a double. is_float - Finds whether a variable is a float. is_int - Find whether a variable is an integer. is_integer - Find whether a variable is an integer. is_long - Finds whether a variable is an integer. is_object - Finds whether a variable is an object. is_real - Finds whether a variable is a real. is_string - Finds whether a variable is a string. isset - determine whether a variable is set settype - Set the type of a variable. strval - Get string value of a variable. unset - Unset a given variable Enjoy! ----- Original Message ----- From: "Harold" <harold@salt.xgroup.de> To: "php4beta" <php4beta@lists.php.net> Sent: Thursday, March 16, 2000 3:16 PM Subject: [PHP4BETA] is string numeric : i didnt find this function in the manual.. in coldfusion there is a : isnumeric function which returns true or false if a string only contains : numbers.. i think this would be a nice function to include in php? :) : : there is currently a gettype function .. with this i get : : $a = "12345"; : echo gettype($a); // displays "string" : $b = 12345; : echo gettype($b); // displays "integer" : : is_numeric could work this way : : $a = "12345"; // or $a = 12345; : echo is_numeric($a); // true : $b = "12345a"; : echo is_numeric($b); // false : : intval is not what im after here.. : : if there is already a function that does this, can you point me to the : location of it in the manual.. : : thanks : : Harald :