what is the syntax of the SSCANF() function in php?
sscanf(string,format,arg1,arg2,arg++)| Parameter | Description |
|---|---|
| string | Required. Specifies the string to read |
| format | Required. Specifies the format to use.Possible format values:%% – Returns a percent sign%c – The character according to the ASCII value%d – Signed decimal number (negative, zero or positive)%e – Scientific notation using a lowercase (e.g. 1.2e+2)%u – Unsigned decimal number (equal to or greather than zero)%f – Floating-point number%o – Octal number%s – String%x – Hexadecimal number (lowercase letters)%X – Hexadecimal number (uppercase letters)Additional format values. These are placed between the % and the letter (example %.2f):+ (Forces both + and – in front of numbers. By default, only negative numbers are marked)’ (Specifies what to use as padding. Default is space. Must be used together with the width specifier. Example: %’x20s (this uses “x” as padding)- (Left-justifies the variable value)[0-9] (Specifies the minimum width held of to the variable value).[0-9] (Specifies the number of decimal digits or maximum string length)Note: If multiple additional format values are used, they must be in the same order as above. |
| arg1 | Optional. The first variable to store data in |
| arg2 | Optional. The second variable to store data in |
| arg++ | Optional. The third, fourth, and so on, to store data in |
examples of the SSCANF() function
Example 1. In this example, we parse a string.
<?php
$str = "age:30 weight:60kg";
sscanf($str,"age:%d weight:%dkg",$age,$weight);
// show types and values
var_dump($age,$weight);
?>Example 1. In this example, we use the format values %s, %d and %c.
<?php
$str = "If you divide 4 by 2 you'll get 2";
$format = sscanf($str,"%s %s %s %d %s %d %s %s %c");
print_r($format);
?>
