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zend_double_to_str() converts a double to string in the way that (string) would (using %.*H using precision). smart_str_append_double() provides some more fine control over the precision, and whether a zero fraction should be appeneded for whole numbers. A caveat here is that raw calls to zend_gcvt and going through s*printf has slightly different behavior for the degenarate precision=0 case. zend_gcvt will add a dummy E+0 in that case, while s*printf convert this to precision=1 and will not. I'm going with the s*printf behavior here, which is more common, but does result in a minor change to the precision.phpt test.
166 lines
4.6 KiB
PHP
166 lines
4.6 KiB
PHP
--TEST--
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precision setting test
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--INI--
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precision=14
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serialize_precision=17
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--FILE--
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<?php
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$v = array(123456789.012345678901234567890, 10/3, 987e100, 10.0000001);
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echo "INI".PHP_EOL;
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ini_set('precision', -1);
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ini_set('serialize_precision', -1);
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echo ini_get('precision'), PHP_EOL;
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echo ini_get('serialize_precision'), PHP_EOL;
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echo "OUTPUTS".PHP_EOL;
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echo join(' ', $v).PHP_EOL;
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var_dump(serialize($v));
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var_export($v);echo PHP_EOL;
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echo "INI".PHP_EOL;
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ini_set('precision', 0);
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ini_set('serialize_precision', 0);
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echo ini_get('precision'), PHP_EOL;
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echo ini_get('serialize_precision'), PHP_EOL;
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echo "OUTPUTS".PHP_EOL;
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echo join(' ', $v).PHP_EOL;
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var_dump(serialize($v));
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var_export($v);echo PHP_EOL;
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echo "INI".PHP_EOL;
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ini_set('precision', 9);
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ini_set('serialize_precision', 9);
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echo ini_get('precision'), PHP_EOL;
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echo ini_get('serialize_precision'), PHP_EOL;
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echo "OUTPUTS".PHP_EOL;
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echo join(' ', $v).PHP_EOL;
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var_dump(serialize($v));
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var_export($v);echo PHP_EOL;
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echo "INI".PHP_EOL;
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ini_set('precision', 14);
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ini_set('serialize_precision', 14);
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echo ini_get('precision'), PHP_EOL;
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echo ini_get('serialize_precision'), PHP_EOL;
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echo "OUTPUTS".PHP_EOL;
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echo join(' ', $v).PHP_EOL;
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var_dump(serialize($v));
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var_export($v);echo PHP_EOL;
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echo "INI".PHP_EOL;
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ini_set('precision', 17);
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ini_set('serialize_precision', 17);
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echo ini_get('precision'), PHP_EOL;
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echo ini_get('serialize_precision'), PHP_EOL;
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echo "OUTPUTS".PHP_EOL;
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echo join(' ', $v).PHP_EOL;
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var_dump(serialize($v));
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var_export($v);echo PHP_EOL;
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echo "INI".PHP_EOL;
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ini_set('precision', 25);
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ini_set('serialize_precision', 25);
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echo ini_get('precision'), PHP_EOL;
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echo ini_get('serialize_precision'), PHP_EOL;
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echo "OUTPUTS".PHP_EOL;
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echo join(' ', $v).PHP_EOL;
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var_dump(serialize($v));
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var_export($v);echo PHP_EOL;
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echo "INI".PHP_EOL;
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ini_set('precision', 100);
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ini_set('serialize_precision', 100);
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echo ini_get('precision'), PHP_EOL;
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echo ini_get('serialize_precision'), PHP_EOL;
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echo "OUTPUTS".PHP_EOL;
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echo join(' ', $v).PHP_EOL;
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var_dump(serialize($v));
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var_export($v);echo PHP_EOL;
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?>
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--EXPECT--
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INI
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-1
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-1
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OUTPUTS
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123456789.01234567 3.3333333333333335 9.87E+102 10.0000001
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string(89) "a:4:{i:0;d:123456789.01234567;i:1;d:3.3333333333333335;i:2;d:9.87E+102;i:3;d:10.0000001;}"
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array (
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0 => 123456789.01234567,
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1 => 3.3333333333333335,
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2 => 9.87E+102,
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3 => 10.0000001,
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)
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INI
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0
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0
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OUTPUTS
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1.0E+8 3 1.0E+103 1.0E+1
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string(60) "a:4:{i:0;d:1.0E+8;i:1;d:3.0E+0;i:2;d:1.0E+103;i:3;d:1.0E+1;}"
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array (
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0 => 1.0E+8,
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1 => 3.0,
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2 => 1.0E+103,
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3 => 1.0E+1,
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)
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INI
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9
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9
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OUTPUTS
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123456789 3.33333333 9.87E+102 10.0000001
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string(72) "a:4:{i:0;d:123456789;i:1;d:3.33333333;i:2;d:9.87E+102;i:3;d:10.0000001;}"
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array (
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0 => 123456789.0,
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1 => 3.33333333,
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2 => 9.87E+102,
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3 => 10.0000001,
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)
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INI
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14
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14
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OUTPUTS
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123456789.01235 3.3333333333333 9.87E+102 10.0000001
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string(83) "a:4:{i:0;d:123456789.01235;i:1;d:3.3333333333333;i:2;d:9.87E+102;i:3;d:10.0000001;}"
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array (
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0 => 123456789.01235,
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1 => 3.3333333333333,
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2 => 9.87E+102,
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3 => 10.0000001,
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)
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INI
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17
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17
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OUTPUTS
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123456789.01234567 3.3333333333333335 9.8700000000000007E+102 10.000000099999999
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string(111) "a:4:{i:0;d:123456789.01234567;i:1;d:3.3333333333333335;i:2;d:9.8700000000000007E+102;i:3;d:10.000000099999999;}"
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array (
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0 => 123456789.01234567,
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1 => 3.3333333333333335,
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2 => 9.8700000000000007E+102,
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3 => 10.000000099999999,
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)
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INI
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25
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25
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OUTPUTS
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123456789.0123456716537476 3.33333333333333348136307 9.870000000000000687310143E+102 10.0000000999999993922529
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string(141) "a:4:{i:0;d:123456789.0123456716537476;i:1;d:3.33333333333333348136307;i:2;d:9.870000000000000687310143E+102;i:3;d:10.0000000999999993922529;}"
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array (
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0 => 123456789.0123456716537476,
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1 => 3.33333333333333348136307,
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2 => 9.870000000000000687310143E+102,
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3 => 10.0000000999999993922529,
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)
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INI
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100
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100
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OUTPUTS
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123456789.01234567165374755859375 3.333333333333333481363069950020872056484222412109375 9.87000000000000068731014283095442748328521861543465424509123736073120616987695396574376473706259651E+102 10.0000000999999993922529029077850282192230224609375
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string(277) "a:4:{i:0;d:123456789.01234567165374755859375;i:1;d:3.333333333333333481363069950020872056484222412109375;i:2;d:9.87000000000000068731014283095442748328521861543465424509123736073120616987695396574376473706259651E+102;i:3;d:10.0000000999999993922529029077850282192230224609375;}"
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array (
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0 => 123456789.01234567165374755859375,
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1 => 3.333333333333333481363069950020872056484222412109375,
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2 => 9.87000000000000068731014283095442748328521861543465424509123736073120616987695396574376473706259651E+102,
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3 => 10.0000000999999993922529029077850282192230224609375,
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)
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