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388 lines
6.1 KiB
PHP
388 lines
6.1 KiB
PHP
--TEST--
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Test is_numeric() function
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--FILE--
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<?php
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/* Prototype: bool is_numeric ( mixed $var );
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* Description: Finds whether a variable is a number or a numeric string
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*/
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echo "*** Testing is_numeric() with valid numeric values ***\n";
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// different valid numeric vlaues
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$numerics = array(
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0,
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1,
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-1,
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-0,
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+0,
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0.0,
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-0.0,
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+0.0,
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1.0,
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-1.0,
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+1.0,
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.5,
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-.5,
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+.5,
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-.5e-2,
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.5e-2,
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+.5e-2,
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+.5E+2,
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0.70000000,
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+0.70000000,
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-0.70000000,
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1234567890123456,
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-1234567890123456,
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984847472827282718178,
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-984847472827282718178,
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123.56e30,
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123.56E30,
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426.45e-30,
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5657.3E-40,
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3486.36e+40,
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3486.36E+90,
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-3486.36E+10,
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-3486.36e+80,
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-426.45e-50,
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-426.45E-99,
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1e2,
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-1e2,
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-1e-2,
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+1e2,
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+1e+2,
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+1e-2,
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+1e+2,
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2245555555555555.444,
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1.444444444444444444,
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0xff, // hexa decimal numbers
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0xFF,
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//0x1111111111111111111111,
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-0x1111111,
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+0x6698319,
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01000000000000000000000,
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0123,
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0345900,
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-0200001,
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-0200001.7,
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0200001.7,
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+0200001,
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+0200001.7,
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+0200001.7,
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2.00000000000000000000001, // a float value with more precision points
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"1", // numeric in the form of string
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"-1",
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"1e2",
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" 1",
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"2974394749328742328432",
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"-1e-2",
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'1',
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'-1',
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'1e2',
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' 1',
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'2974394749328742328432',
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'-1e-2',
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"0xff",
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'0xff',
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"0123",
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'0123',
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"-0123",
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"+0123",
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'-0123',
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'+0123'
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);
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/* loop to check that is_numeric() recognizes different
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numeric values, expected output: bool(true) */
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$loop_counter = 1;
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foreach ($numerics as $num ) {
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echo "-- Iteration $loop_counter --\n"; $loop_counter++;
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var_dump( is_numeric($num) );
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}
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echo "\n*** Testing is_numeric() on non numeric types ***\n";
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// get a resource type variable
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$fp = fopen (__FILE__, "r");
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$dfp = opendir ( dirname(__FILE__) );
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// unset variable
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$unset_var = 10.5;
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unset ($unset_var);
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// other types in a array
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$not_numerics = array(
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"-0x80001",
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"+0x80001",
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"-0x80001.5",
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"0x80001.5",
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new stdclass, // object
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$fp, // resource
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$dfp,
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array(),
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array("string"),
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"",
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"1 ",
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"- 1",
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"1.2.4",
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"1e7.6",
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"3FF",
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"20 test",
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"3.6test",
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"1,000",
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"NULL",
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"true",
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true,
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NULL,
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null,
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TRUE,
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FALSE,
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false,
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@$unset_var, // unset variable
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@$undefined_var
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);
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/* loop through the $not_numerics to see working of
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is_numeric() on non numeric values, expected output: bool(false) */
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$loop_counter = 1;
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foreach ($not_numerics as $type ) {
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echo "-- Iteration $loop_counter --\n"; $loop_counter++;
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var_dump( is_numeric($type) );
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}
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echo "\n*** Testing error conditions ***\n";
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//Zero argument
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var_dump( is_numeric() );
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//arguments more than expected
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var_dump( is_numeric("10", "20") );
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echo "Done\n";
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// close the resources used
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fclose($fp);
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closedir($dfp);
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?>
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--EXPECTF--
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*** Testing is_numeric() with valid numeric values ***
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-- Iteration 1 --
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bool(true)
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-- Iteration 2 --
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bool(true)
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-- Iteration 3 --
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bool(true)
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-- Iteration 4 --
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bool(true)
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-- Iteration 5 --
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bool(true)
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-- Iteration 6 --
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bool(true)
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-- Iteration 7 --
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bool(true)
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-- Iteration 8 --
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bool(true)
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-- Iteration 9 --
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bool(true)
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-- Iteration 10 --
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bool(true)
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-- Iteration 11 --
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bool(true)
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-- Iteration 12 --
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bool(true)
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-- Iteration 13 --
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bool(true)
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-- Iteration 14 --
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bool(true)
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-- Iteration 15 --
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bool(true)
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-- Iteration 16 --
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bool(true)
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-- Iteration 17 --
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bool(true)
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-- Iteration 18 --
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bool(true)
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-- Iteration 19 --
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bool(true)
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-- Iteration 20 --
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bool(true)
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-- Iteration 21 --
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bool(true)
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-- Iteration 22 --
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bool(true)
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-- Iteration 23 --
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bool(true)
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-- Iteration 24 --
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bool(true)
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-- Iteration 25 --
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bool(true)
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-- Iteration 26 --
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bool(true)
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-- Iteration 27 --
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bool(true)
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-- Iteration 28 --
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bool(true)
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-- Iteration 29 --
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bool(true)
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-- Iteration 30 --
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bool(true)
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-- Iteration 31 --
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bool(true)
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-- Iteration 32 --
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bool(true)
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-- Iteration 33 --
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bool(true)
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-- Iteration 34 --
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bool(true)
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-- Iteration 35 --
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bool(true)
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-- Iteration 36 --
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bool(true)
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-- Iteration 37 --
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bool(true)
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-- Iteration 38 --
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bool(true)
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-- Iteration 39 --
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bool(true)
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-- Iteration 40 --
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bool(true)
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-- Iteration 41 --
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bool(true)
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-- Iteration 42 --
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bool(true)
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-- Iteration 43 --
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bool(true)
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-- Iteration 44 --
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bool(true)
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-- Iteration 45 --
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bool(true)
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-- Iteration 46 --
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bool(true)
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-- Iteration 47 --
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bool(true)
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-- Iteration 48 --
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bool(true)
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-- Iteration 49 --
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bool(true)
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-- Iteration 50 --
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bool(true)
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-- Iteration 51 --
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bool(true)
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-- Iteration 52 --
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bool(true)
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-- Iteration 53 --
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bool(true)
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-- Iteration 54 --
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bool(true)
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-- Iteration 55 --
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bool(true)
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-- Iteration 56 --
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bool(true)
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-- Iteration 57 --
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bool(true)
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-- Iteration 58 --
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bool(true)
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-- Iteration 59 --
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bool(true)
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-- Iteration 60 --
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bool(true)
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-- Iteration 61 --
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bool(true)
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-- Iteration 62 --
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bool(true)
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-- Iteration 63 --
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bool(true)
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-- Iteration 64 --
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bool(true)
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-- Iteration 65 --
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bool(true)
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-- Iteration 66 --
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bool(true)
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-- Iteration 67 --
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bool(true)
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-- Iteration 68 --
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bool(true)
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-- Iteration 69 --
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bool(true)
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-- Iteration 70 --
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bool(true)
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-- Iteration 71 --
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bool(true)
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-- Iteration 72 --
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bool(true)
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-- Iteration 73 --
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bool(true)
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-- Iteration 74 --
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bool(true)
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-- Iteration 75 --
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bool(true)
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-- Iteration 76 --
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bool(true)
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-- Iteration 77 --
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bool(true)
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-- Iteration 78 --
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bool(true)
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*** Testing is_numeric() on non numeric types ***
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-- Iteration 1 --
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bool(false)
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-- Iteration 2 --
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bool(false)
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-- Iteration 3 --
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bool(false)
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-- Iteration 4 --
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bool(false)
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-- Iteration 5 --
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bool(false)
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-- Iteration 6 --
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bool(false)
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-- Iteration 7 --
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bool(false)
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-- Iteration 8 --
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bool(false)
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-- Iteration 9 --
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bool(false)
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-- Iteration 10 --
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bool(false)
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-- Iteration 11 --
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bool(false)
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-- Iteration 12 --
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bool(false)
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-- Iteration 13 --
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bool(false)
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-- Iteration 14 --
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bool(false)
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-- Iteration 15 --
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bool(false)
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-- Iteration 16 --
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bool(false)
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-- Iteration 17 --
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bool(false)
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-- Iteration 18 --
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bool(false)
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-- Iteration 19 --
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bool(false)
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-- Iteration 20 --
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bool(false)
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-- Iteration 21 --
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bool(false)
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-- Iteration 22 --
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bool(false)
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-- Iteration 23 --
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bool(false)
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-- Iteration 24 --
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bool(false)
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-- Iteration 25 --
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bool(false)
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-- Iteration 26 --
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bool(false)
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-- Iteration 27 --
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bool(false)
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-- Iteration 28 --
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bool(false)
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*** Testing error conditions ***
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Warning: is_numeric() expects exactly 1 parameter, 0 given in %s on line %d
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NULL
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Warning: is_numeric() expects exactly 1 parameter, 2 given in %s on line %d
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NULL
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Done
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