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a939805641
var_dump() is debugging functionality, so it should print floating-point numbers accurately. We do this by switching to serialize_precision, which (by default) will print with as much precision as necessary to preserve the exact value of the float. This also affects debug_zval_dump(). Closes GH-5172.
74 lines
1.4 KiB
PHP
74 lines
1.4 KiB
PHP
--TEST--
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Test expm1() - basic function test for expm1()
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--INI--
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serialize_precision=14
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--FILE--
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<?php
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/* Prototype : float expm1 ( float $arg )
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* Description: Returns exp(number) - 1, computed in a way that is accurate even
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* when the value of number is close to zero.
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* Source code: ext/standard/math.c
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*/
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echo "*** Testing expm1() : basic functionality ***\n";
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$values = array(10,
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10.3,
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3.9505e3,
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037,
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0x5F,
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"10",
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"3950.5",
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"3.9505e3",
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"039",
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true,
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false,
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null,
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);
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// loop through each element of $values to check the behaviour of expm1()
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$iterator = 1;
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foreach($values as $value) {
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echo "\n-- Iteration $iterator --\n";
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var_dump(expm1($value));
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$iterator++;
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};
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?>
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--EXPECT--
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*** Testing expm1() : basic functionality ***
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-- Iteration 1 --
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float(22025.465794807)
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-- Iteration 2 --
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float(29731.618852891)
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-- Iteration 3 --
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float(INF)
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-- Iteration 4 --
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float(29048849665246)
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-- Iteration 5 --
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float(1.811239082889E+41)
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-- Iteration 6 --
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float(22025.465794807)
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-- Iteration 7 --
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float(INF)
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-- Iteration 8 --
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float(INF)
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-- Iteration 9 --
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float(8.6593400423994E+16)
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-- Iteration 10 --
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float(1.718281828459)
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-- Iteration 11 --
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float(0)
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-- Iteration 12 --
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float(0)
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