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0221b8b2ab
If * is used for width/precision in printf, then the width/precision
is provided by a printf argument instead of being part of the format
string. Semantics generally match those of printf in C.
This can be used to easily reproduce PHP's float printing behavior:
// Locale-sensitive using precision ini setting.
// Used prior to PHP 8.0.
sprintf("%.*G", (int) ini_get('precision'), $float);
// Locale-insensitive using precision ini setting.
// Used since to PHP 8.0.
sprintf("%.*H", (int) ini_get('precision'), $float);
// Locale-insensitive using serialize_precision ini setting.
// Used in serialize(), json_encode() etc.
sprintf("%.*H", (int) ini_get('serialize_precision'), $float);
Closes GH-5432.
99 lines
1.7 KiB
PHP
99 lines
1.7 KiB
PHP
--TEST--
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Star width and precision in sprintf()
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--FILE--
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<?php
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$f = 1.23456789012345678;
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$fx = 1.23456789012345678e100;
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var_dump($f, $fx);
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printf("%.*f\n", 10, $f);
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printf("%.*G\n", 10, $f);
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printf("%.*g\n", -1, $fx);
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printf("%.*G\n", -1, $fx);
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printf("%.*h\n", -1, $fx);
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printf("%.*H\n", -1, $fx);
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printf("%.*s\n", 3, "foobar");
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echo "\n";
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printf("%*f\n", 10, $f);
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printf("%*G\n", 10, $f);
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printf("%*s\n", 10, "foobar");
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echo "\n";
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printf("%*.*f\n", 10, 3, $f);
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printf("%*.*G\n", 10, 3, $f);
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printf("%*.*s\n", 10, 3, "foobar");
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echo "\n";
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printf("%1$.*2\$f\n", $f, 10);
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printf("%.*2\$f\n", $f, 10);
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printf("%2$.*f\n", 10, $f);
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printf("%1$*2\$f\n", $f, 10);
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printf("%*2\$f\n", $f, 10);
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printf("%2$*f\n", 10, $f);
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printf("%1$*2$.*3\$f\n", $f, 10, 3);
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printf("%*2$.*3\$f\n", $f, 10, 3);
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printf("%3$*.*f\n", 10, 3, $f);
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echo "\n";
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try {
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printf("%.*G\n", "foo", 1.5);
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} catch (ValueError $e) {
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echo $e->getMessage(), "\n";
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}
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try {
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printf("%.*G\n", -100, 1.5);
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} catch (ValueError $e) {
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echo $e->getMessage(), "\n";
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}
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try {
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printf("%.*s\n", -1, "Foo");
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} catch (ValueError $e) {
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echo $e->getMessage(), "\n";
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}
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try {
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printf("%*G\n", -1, $f);
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} catch (ValueError $e) {
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echo $e->getMessage(), "\n";
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}
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?>
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--EXPECT--
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float(1.2345678901234567)
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float(1.2345678901234569E+100)
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1.2345678901
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1.23456789
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1.2345678901234569e+100
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1.2345678901234569E+100
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1.2345678901234569e+100
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1.2345678901234569E+100
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foo
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1.234568
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1.23457
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foobar
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1.235
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1.23
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foo
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1.2345678901
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1.2345678901
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1.2345678901
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1.234568
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1.234568
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1.234568
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1.235
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1.235
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1.235
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Precision must be an integer
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Precision must be between -1 and 2147483647
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Precision -1 is only supported for %g, %G, %h and %H
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Width must be greater than zero and less than 2147483647
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