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--TEST--
Test vsprintf() function : usage variations - scientific formats with scientific values
--FILE--
<?php
/* Prototype : string vsprintf(string format, array args)
* Description: Return a formatted string
* Source code: ext/standard/formatted_print.c
*/
/*
* Test vsprintf() when different scientific formats and scientific values
* are passed to the '$format' and '$args' arguments of the function
*/
echo "*** Testing vsprintf() : scientific formats and scientific values ***\n";
// defining array of scientific formats
$formats = array(
'%e %+e %-e',
'%le %Le %4e %-4e',
'%10.4e %-10.4e %.4e',
'%\'#20e %\'20e %\'$20e %\'_20e',
'%3$e %4$e %1$e %2$e'
);
// Arrays of scientific values for the format defined in $format.
// Each sub array contains scientific values which correspond to each format string in $format
$args_array = array(
array(0, 1e0, "10e2" ),
array(2.2e2, 10e10, 1000e-2, 1000e7),
array(-22e12, 10e20, 1.2e2),
array(1e1, +1e2, -1e3, "1e2_"),
array(3e3, 4e3, 1e3, 2e3)
);
// looping to test vsprintf() with different scientific formats from the above $format array
// and with signed and other types of values from the above $args_array array
$counter = 1;
foreach($formats as $format) {
echo "\n-- Iteration $counter --\n";
var_dump( vsprintf($format, $args_array[$counter-1]) );
$counter++;
}
echo "Done";
?>
--EXPECTF--
*** Testing vsprintf() : scientific formats and scientific values ***
-- Iteration 1 --
string(36) "0.000000e+0 +1.000000e+0 1.000000e+3"
-- Iteration 2 --
string(38) "2.200000e+2 e 1.000000e+1 1.000000e+10"
-- Iteration 3 --
string(32) "-2.2000e+13 1.0000e+21 1.2000e+2"
-- Iteration 4 --
string(74) "#########1.000000e+1 1.000000e+2 $$$$$$$$-1.000000e+3 _________1.000000e+2"
-- Iteration 5 --
string(47) "1.000000e+3 2.000000e+3 3.000000e+3 4.000000e+3"
Done