What is the purpose of the intval function in PHP?

The purpose of the intval function is to convert a variable to an integer type. It attempts to convert the specified variable to an integer and returns the result of the conversion. If the variable cannot be converted to an integer, it returns 0.

He’s not coming to the party.

He will not be attending the party.

$number = "123test";
$integer = intval($number); // $integer 现在是整数 123

The intval function can also specify a base parameter to convert numbers from other bases to decimal.

$hexNumber = "0x1A";
$decimalNumber = intval($hexNumber, 16); // $decimalNumber 现在是整数 26

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