--- /dev/null
+--TEST--
+Test printf() function
+--FILE--
+<?php
+
+/* Various input arrays for different format types */
+
+$float_variation = array( "%f", "%-f", "%+f", "%7.2f", "%-7.2f", "%07.2f", "%-07.2f", "%'#7.2f" );
+$float_numbers = array( 0, 1, -1, 0.32, -0.32, 3.4. -3.4, 2.54, -2.54, 1.2345678e99, -1.2345678e99 );
+
+$int_variation = array( "%d", "%-d", "%+d", "%7.2d", "%-7.2d", "%07.2d", "%-07.2d", "%'#7.2d" );
+$int_numbers = array( 0, 1, -1, 2.7, -2.7, 23333333, -23333333, "1234" );
+
+$char_variation = array( 'a', "a", 67, -67, 99 );
+
+$string_variation = array( "%5s", "%-5s", "%05s", "%'#5s" );
+$strings = array( NULL, "abc", 'aaa' );
+
+/* Checking warning messages */
+
+/* Zero argument */
+echo "\n*** Output for zero argument ***\n";
+printf();
+
+/* Number of arguments not matching as specified in format field */
+echo "\n*** Output for insufficient number of arguments ***\n";
+$string = "dingy%sflem%dwombat";
+$nbr = 5;
+$name = "voudras";
+printf("%d $string %s", $nbr, $name);
+
+
+/* Scalar argument */
+echo "\n*** Output for scalar argument ***\n";
+printf(3);
+
+/* NULL argument */
+echo "\n*** Output for NULL as argument ***\n";
+printf(NULL);
+
+
+/* Float type variations */
+
+$counter = 1;
+echo "\n\n*** Output for float type ***\n";
+echo "\n Input Float numbers variation array is:\n";
+print_r($float_numbers);
+
+foreach( $float_variation as $float_var )
+{
+ echo "\n\nFloat Iteration $counter";
+ foreach( $float_numbers as $float_num )
+ {
+ echo "\n";
+ printf( $float_var, $float_num );
+ }
+ $counter++;
+}
+
+
+/* Integer type variations */
+
+$counter = 1;
+echo "\n\n*** Output for integer type ***\n";
+echo "\n Input Integer numbers variation array is:\n";
+print_r($int_numbers);
+
+foreach( $int_variation as $int_var )
+{
+ echo "\n\nInteger Iteration $counter";
+ foreach( $int_numbers as $int_num )
+ {
+ echo "\n";
+ printf( $int_var, $int_num );
+ }
+ $counter++;
+}
+
+
+/* Binary type variations */
+
+echo "\n\n*** Output for binary type ***\n";
+echo "\n Input numbers variation array is:\n";
+print_r($int_numbers);
+
+ foreach( $int_numbers as $bin_num )
+ {
+ echo "\n";
+ printf( "%b", $bin_num );
+ }
+
+
+/* Chararter type variations */
+echo "\n\n*** Output for char type ***\n";
+echo "\n Input Characters variation array is:\n";
+print_r($char_variation);
+
+foreach( $char_variation as $char )
+{
+ echo "\n";
+ printf( "%c", $char );
+}
+
+/* Scientific type variations */
+echo "\n\n*** Output for scientific type ***\n";
+echo "\n Input numbers variation array is:\n";
+print_r($int_numbers);
+
+foreach( $int_numbers as $num )
+{
+ echo "\n";
+ printf( "%e", $num );
+}
+
+/* Unsigned Integer type variation */
+echo "\n\n*** Output for unsigned integer type ***\n";
+echo "\n Input Integer numbers variation array is:\n";
+print_r($int_numbers);
+
+foreach( $int_numbers as $unsig_num )
+{
+ echo "\n";
+ printf( "%u", $unsig_num );
+}
+
+/* Octal type variations */
+echo "\n\n*** Output for octal type ***\n";
+echo "\n Input numbers variation array is:\n";
+print_r($int_numbers);
+
+foreach( $int_numbers as $octal_num )
+{
+ echo "\n";
+ printf( "%o", $octal_num );
+}
+
+/* Hexadecimal type variations */
+echo "\n\n*** Output for hexadecimal type ***\n";
+echo "\n Input numbers variation array is:\n";
+print_r($int_numbers);
+
+foreach( $int_numbers as $hexa_num )
+{
+ echo "\n";
+ printf( "%x", $hexa_num );
+}
+
+/* String type variations */
+echo "\n\n*** Output for string type ***\n";
+echo "\n Input Strings format variation array is:\n";
+print_r($string_variation);
+echo "\n Input strings variation array is:\n";
+print_r($strings);
+
+foreach( $string_variation as $string_var )
+{
+ foreach( $strings as $str )
+ {
+ echo "\n";
+ printf( $string_var, $str );
+ }
+}
+
+
+/* variations of %g type */
+$format_g = array("%g", "%.0g", "%+g", "%-g", "%-1.2g", "%+1.2g", "%G", "%.0G", "%+G", "%-G", "%-1.2G", "%+1.2G");
+
+echo "\n\n*** Output for '%g' type ***\n";
+echo "\n Input format variation array is:\n";
+print_r($format_g);
+
+foreach( $format_g as $formatg )
+{
+ printf("\n$formatg",123456);
+ printf("\n$formatg",-123456);
+}
+
+
+/* Some more typical cases */
+
+$tempnum = 12345;
+$tempstring = "abcdefghjklmnpqrstuvwxyz";
+
+echo"\n\n*** Output for '%%%.2f' as the format parameter ***\n";
+printf("%%%.2f",1.23456789e10);
+
+echo"\n\n*** Output for '%%' as the format parameter ***\n";
+printf("%%",1.23456789e10);
+
+echo"\n\n*** Output for precision value more than maximum ***\n";
+printf("%.988f",1.23456789e10);
+
+echo"\n\n*** Output for invalid width(-15) specifier ***\n";
+printf("%030.-15s", $tempstring);
+
+echo"\n\n*** Output for '%F' as the format parameter ***\n";
+printf("%F",1.23456789e10);
+
+echo"\n\n*** Output for '%X' as the format parameter ***\n";
+printf("%X",12);
+
+echo"\n\n*** Output with no format parameter ***\n";
+printf($tempnum);
+
+echo"\n\n*** Output for multiple format parameters ***\n";
+printf("%d %s %d\n", $tempnum, $tempstring, $tempnum);
+
+echo"\n\n*** Output for excess of mixed type arguments ***\n";
+printf("%s", $tempstring, $tempstring, $tempstring);
+
+echo"\n\n*** Output for string format parameter and integer type argument ***\n";
+printf("%s", $tempnum);
+
+echo"\n\n*** Output for integer format parameter and string type argument ***\n";
+printf("%d", $tempstring);
+
+
+?>
+--EXPECTF--
+*** Output for zero argument ***
+
+Warning: Wrong parameter count for printf() in %s on line %d
+
+*** Output for insufficient number of arguments ***
+
+Warning: printf(): Too few arguments in %s on line %d
+
+*** Output for scalar argument ***
+3
+*** Output for NULL as argument ***
+
+
+*** Output for float type ***
+
+ Input Float numbers variation array is:
+Array
+(
+ [0] => 0
+ [1] => 1
+ [2] => -1
+ [3] => 0.32
+ [4] => -0.32
+ [5] => 3.4-3.4
+ [6] => 2.54
+ [7] => -2.54
+ [8] => 1.2345678E+99
+ [9] => -1.2345678E+99
+)
+
+
+Float Iteration 1
+0.000000
+1.000000
+-1.000000
+0.320000
+-0.320000
+3.400000
+2.540000
+-2.540000
+1234567%d.000000
+-1234567%d.000000
+
+Float Iteration 2
+0.000000
+1.000000
+-1.000000
+0.320000
+-0.320000
+3.400000
+2.540000
+-2.540000
+1234567%d.000000
+-1234567%d.000000
+
+Float Iteration 3
++0.000000
++1.000000
+-1.000000
++0.320000
+-0.320000
++3.400000
++2.540000
+-2.540000
++1234567%d.000000
+-1234567%d.000000
+
+Float Iteration 4
+ 0.00
+ 1.00
+ -1.00
+ 0.32
+ -0.32
+ 3.40
+ 2.54
+ -2.54
+1234567%d.00
+-1234567%d.00
+
+Float Iteration 5
+0.00
+1.00
+-1.00
+0.32
+-0.32
+3.40
+2.54
+-2.54
+1234567%d.00
+-1234567%d.00
+
+Float Iteration 6
+0000.00
+0001.00
+-001.00
+0000.32
+-000.32
+0003.40
+0002.54
+-002.54
+1234567%d.00
+-1234567%d.00
+
+Float Iteration 7
+0.00000
+1.00000
+-1.0000
+0.32000
+-0.3200
+3.40000
+2.54000
+-2.5400
+1234567%d.00
+-1234567%d.00
+
+Float Iteration 8
+###0.00
+###1.00
+##-1.00
+###0.32
+##-0.32
+###3.40
+###2.54
+##-2.54
+1234567%d.00
+-1234567%d.00
+
+*** Output for integer type ***
+
+ Input Integer numbers variation array is:
+Array
+(
+ [0] => 0
+ [1] => 1
+ [2] => -1
+ [3] => 2.7
+ [4] => -2.7
+ [5] => 23333333
+ [6] => -23333333
+ [7] => 1234
+)
+
+
+Integer Iteration 1
+0
+1
+-1
+2
+-2
+23333333
+-23333333
+1234
+
+Integer Iteration 2
+0
+1
+-1
+2
+-2
+23333333
+-23333333
+1234
+
+Integer Iteration 3
++0
++1
+-1
++2
+-2
++23333333
+-23333333
++1234
+
+Integer Iteration 4
+ 0
+ 1
+ -1
+ 2
+ -2
+23333333
+-23333333
+ 1234
+
+Integer Iteration 5
+0
+1
+-1
+2
+-2
+23333333
+-23333333
+1234
+
+Integer Iteration 6
+0000000
+0000001
+-000001
+0000002
+-000002
+23333333
+-23333333
+0001234
+
+Integer Iteration 7
+0
+1
+-1
+2
+-2
+23333333
+-23333333
+1234
+
+Integer Iteration 8
+######0
+######1
+#####-1
+######2
+#####-2
+23333333
+-23333333
+###1234
+
+*** Output for binary type ***
+
+ Input numbers variation array is:
+Array
+(
+ [0] => 0
+ [1] => 1
+ [2] => -1
+ [3] => 2.7
+ [4] => -2.7
+ [5] => 23333333
+ [6] => -23333333
+ [7] => 1234
+)
+
+0
+1
+11111111111111111111111111111111
+10
+11111111111111111111111111111110
+1011001000000100111010101
+11111110100110111111011000101011
+10011010010
+
+*** Output for char type ***
+
+ Input Characters variation array is:
+Array
+(
+ [0] => a
+ [1] => a
+ [2] => 67
+ [3] => -67
+ [4] => 99
+)
+
+\0
+\0
+C
+½
+c
+
+*** Output for scientific type ***
+
+ Input numbers variation array is:
+Array
+(
+ [0] => 0
+ [1] => 1
+ [2] => -1
+ [3] => 2.7
+ [4] => -2.7
+ [5] => 23333333
+ [6] => -23333333
+ [7] => 1234
+)
+
+0.000000e+0
+1.000000e+0
+-1.000000e+0
+2.700000e+0
+-2.700000e+0
+2.333333e+7
+-2.333333e+7
+1.234000e+3
+
+*** Output for unsigned integer type ***
+
+ Input Integer numbers variation array is:
+Array
+(
+ [0] => 0
+ [1] => 1
+ [2] => -1
+ [3] => 2.7
+ [4] => -2.7
+ [5] => 23333333
+ [6] => -23333333
+ [7] => 1234
+)
+
+0
+1
+4294967295
+2
+4294967294
+23333333
+4271633963
+1234
+
+*** Output for octal type ***
+
+ Input numbers variation array is:
+Array
+(
+ [0] => 0
+ [1] => 1
+ [2] => -1
+ [3] => 2.7
+ [4] => -2.7
+ [5] => 23333333
+ [6] => -23333333
+ [7] => 1234
+)
+
+0
+1
+37777777777
+2
+37777777776
+131004725
+37646773053
+2322
+
+*** Output for hexadecimal type ***
+
+ Input numbers variation array is:
+Array
+(
+ [0] => 0
+ [1] => 1
+ [2] => -1
+ [3] => 2.7
+ [4] => -2.7
+ [5] => 23333333
+ [6] => -23333333
+ [7] => 1234
+)
+
+0
+1
+ffffffff
+2
+fffffffe
+16409d5
+fe9bf62b
+4d2
+
+*** Output for string type ***
+
+ Input Strings format variation array is:
+Array
+(
+ [0] => %5s
+ [1] => %-5s
+ [2] => %05s
+ [3] => %'#5s
+)
+
+ Input strings variation array is:
+Array
+(
+ [0] =>
+ [1] => abc
+ [2] => aaa
+)
+
+
+ abc
+ aaa
+
+abc
+aaa
+00000
+00abc
+00aaa
+#####
+##abc
+##aaa
+
+*** Output for '%g' type ***
+
+ Input format variation array is:
+Array
+(
+ [0] => %g
+ [1] => %.0g
+ [2] => %+g
+ [3] => %-g
+ [4] => %-1.2g
+ [5] => %+1.2g
+ [6] => %G
+ [7] => %.0G
+ [8] => %+G
+ [9] => %-G
+ [10] => %-1.2G
+ [11] => %+1.2G
+)
+
+123456
+-123456
+1.0e+5
+-1.0e+5
++123456
+-123456
+123456
+-123456
+120000
+-120000
++120000
+-120000
+123456
+-123456
+1.0E+5
+-1.0E+5
++123456
+-123456
+123456
+-123456
+120000
+-120000
++120000
+-120000
+
+*** Output for '%%%.2f' as the format parameter ***
+%12345678900.00
+
+*** Output for '%%' as the format parameter ***
+%
+
+*** Output for precision value more than maximum ***
+12345678900.0000000000000000000000000000000000000000
+
+*** Output for invalid width(-15) specifier ***
+15s
+
+*** Output for '%F' as the format parameter ***
+12345678900.000000
+
+*** Output for '%X' as the format parameter ***
+C
+
+*** Output with no format parameter ***
+12345
+
+*** Output for multiple format parameters ***
+12345 abcdefghjklmnpqrstuvwxyz 12345
+
+
+*** Output for excess of mixed type arguments ***
+abcdefghjklmnpqrstuvwxyz
+
+*** Output for string format parameter and integer type argument ***
+12345
+
+*** Output for integer format parameter and string type argument ***
+0
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