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PHP sscanf() Function

PHP sscanf() function is used to scan parse input from a given input string according to a specified format. This function parses a string into variables based on the given format string. If we pass two parameters, this function will return the data as an array.

Syntax:

  sscanf($string,$format,$arg1,$arg2,$arg++);

Parameter Values

Parameter	Description
string	This is a required parameter. This parameter contains the string to be read.
format	This is a required parameter. This parameter defines the formatto be used. Some of the possible format values: %% - Returns a percent sign. %b – Inserts a binary number. %c – Inserts the character according to the ASCII value. %d – Inserts a signed decimal number. %e – Inserts a scientific notation using a lowercase. %E – Inserts a scientific notation using a uppercase. %u – Inserts a unsigned decimal number. %f – Inserts a floating-point number. %o – Inserts an octal number. %s – Inserts a string. %x – Inserts a hexadecimal number.
arg1	This is a required parameter. This parameter contains the argument to be inserted at the first %-sign.
arg2	This is an optional parameter. This parameter contains the argument to be inserted at the second %-sign.
arg++	This is an optional parameter. This parameter contains the argument to be inserted at the upcoming %-sign.

Here is an example of sscanf() function in PHP:

<html>
<body>

<?php
$str = "age:21 weight:54kg";
sscanf($str,"age:%d weight:%dkg",$age,$weight);
// show types and values
var_dump($age,$weight);
?>

</body>
</html>

Output:
int(21) int(54)

Here is an another example of sscanf() function in PHP:

<html>
<body>

<?php
$str = "Someone is 21 years old and earns 20000 per month .";
$format = sscanf($str,"%s %s %d %s %s %s %s %d %s %s %c");
print_r($format);
?>

</body>
</html>

Output:
Array ( [0] => Someone [1] => is [2] => 21 [3] => years [4] => old [5] => and [6] => earns [7] => 20000 [8] => per [9] => month [10] => . )

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