Int val php

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intval — Get the integer value of a variable




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intval — Get the integer value of a variable


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intval — Get the integer value of a variable


Returns the int value of value, using the specified base for the conversion (the mặc định is base 10). intval() should not be used on objects, as doing so will emit an E_NOTICE level error và return 1.


Parameters

value The scalar value being converted lớn an integer

base

The base for the conversion

Note:

If base is 0, the base used is determined by the format of value: if string includes a "0x" (or "0X") prefix, the base is taken as 16 (hex); otherwise, if string starts with "0", the base is taken as 8 (octal); otherwise, the base is taken as 10 (decimal).


Return Values

The integer value of value on success, or 0 on failure. Empty arrays return 0, non-empty arrays return 1.

The maximum value depends on the system. 32 bit systems have sầu a maximum signed integer range of -2147483648 to 2147483647. So for example on such a system, intval('1000000000000') will return 2147483647. The maximum signed integer value for 64 bit systems is 9223372036854775807.

Strings will most likely return 0 although this depends on the leftmost characters of the string. The common rules of integer casting apply.




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intval — Get the integer value of a variable


(obatambeienwasirherbal.com 4, obatambeienwasirherbal.comhường. 5, obatambeienwasirherbal.com 7, obatambeienwasirherbal.comhường 8)

intval — Get the integer value of a variable


(obatambeienwasirherbal.com. 4, obatambeienwasirherbal.comhường 5, obatambeienwasirherbal.com. 7, obatambeienwasirherbal.comhường. 8)

intval — Get the integer value of a variable


echo intval(42);                      // 42
echo intval(4.2);                     // 4
echo intval("42");                    // 42
echo intval("+42");                   // 42
echo intval("-42");                   // -42
echo intval(042);                     // 34
echo intval("042");                   // 42
echo intval(1e10);                    // 1410065408
echo intval("1e10");                  // 1
echo intval(0x1A);                    // 26
echo intval(42000000);                // 42000000
echo intval(420000000000000000000);   // 0
echo intval("420000000000000000000"); // 2147483647
echo intval(428);                   // 42
echo intval("42"8);                 // 34
echo intval(array());                 // 0
echo intval(array("foo""bar"));     // 1
echo intval(false);                   // 0
echo intval(true);                    // 1
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Notes

Note:

The base parameter has no effect unless the value parameter is a string.




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See Also

boolval() - Get the boolean value of a variable floatval() - Get float value of a variable strval() - Get string value of a variable settype() - Set the type of a variable is_numeric() - Finds whether a variable is a number or a numeric string Type juggling BCMath Arbitrary Precision Mathematics Functions



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