--TEST--
Test strpos() function
--INI--
precision=14
--FILE--
<?php
/* Prototype: int strpos ( string $haystack, mixed $needle [, int $offset] );
Description: Find position of first occurrence of a string
*/
echo "*** Testing basic functionality of strpos() ***\n";
var_dump( strpos("test string", "test") );
var_dump( strpos("test string", "string") );
var_dump( strpos("test string", "strin") );
var_dump( strpos("test string", "t s") );
var_dump( strpos("test string", "g") );
var_dump( strpos("te".chr(0)."st", chr(0)) );
var_dump( strpos("tEst", "test") );
var_dump( strpos("teSt", "test") );
var_dump( @strpos("", "") );
var_dump( @strpos("a", "") );
var_dump( @strpos("", "a") );
var_dump( @strpos("\\\\a", "\\a") );
echo "\n*** Testing stropos() to find various needles and a long string ***\n";
$string =
"Hello world,012033 -3.3445 NULL TRUE FALSE\0 abcd\xxyz \x000 octal\n
abcd$:Hello world";
/* needles in an array to get the position of needle in $string */
$needles = array(
"Hello world",
"WORLD",
"\0",
"\x00",
"\x000",
"abcd",
"xyz",
"octal",
"-3",
-3,
"-3.344",
-3.344,
NULL,
"NULL",
"0",
0,
TRUE,
"TRUE",
"1",
1,
FALSE,
"FALSE",
" ",
" ",
'b',
'\n',
"\n",
"12",
"12twelve",
$string
);
/* loop through to get the "needle" position in $string */
for( $i = 0; $i < count($needles); $i++ ) {
echo "Position of '$needles[$i]' is => ";
var_dump( strpos($string, $needles[$i]) );
}
echo "\n*** Testing strpos() with possible variations in offset ***\n";
$offset_values = array (
1, // offset = 1
"string", // offset as string, converts to zero
NULL, // offset as string, converts to zero
"", // offset as string, converts to zero
"12string", // mixed string with int and chars
"0",
TRUE,
NULL,
FALSE,
"string12",
"12.3string", // mixed string with float and chars
);
/* loop through to get the "needle" position in $string */
for( $i = 0; $i < count( $offset_values ); $i++ ) {
echo "Position of 'Hello' with offset '$offset_values[$i]' is => ";
var_dump( strpos($string, "Hello", $offset_values[$i]) );
}
echo "\n*** Testing Miscelleneous input data ***\n";
echo "-- Passing objects as string and needle --\n";
/* we get "Catchable fatal error: saying Object of class needle could not be
converted to string" by default when an object is passed instead of string:
The error can be avoided by chosing the __toString magix method as follows: */
class string
{
function __toString() {
return "Hello, world";
}
}
$obj_string = new string;
class needle
{
function __toString() {
return "world";
}
}
$obj_needle = new needle;
var_dump( strpos("$obj_string", "$obj_needle") );
echo "\n-- Passing an array as string and needle --\n";
$needles = array("hello", "?world", "!$%**()%**[][[[&@#~!");
var_dump( strpos($needles, $needles) ); // won't work
var_dump( strpos("hello?world,!$%**()%**[][[[&@#~!", "$needles[1]") ); // works
var_dump( strpos("hello?world,!$%**()%**[][[[&@#~!", "$needles[2]") ); // works
echo "\n-- Passing Resources as string and needle --\n";
$resource1 = fopen(__FILE__, "r");
$resource2 = opendir(".");
var_dump( strpos($resource1, $resource1) );
var_dump( strpos($resource1, $resource2) );
echo "\n-- Posiibilities with null --\n";
var_dump( strpos("", NULL) );
var_dump( strpos(NULL, NULL) );
var_dump( strpos("a", NULL) );
var_dump( strpos("/x0", "0") ); // Hexadecimal NUL
echo "\n-- A longer and heredoc string --\n";
$string = <<<EOD
abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
EOD;
var_dump( strpos($string, "abcd") );
var_dump( strpos($string, "abcd", 72) ); // 72 -> "\n" in the first line
var_dump( strpos($string, "abcd", 73) ); // 73 -> "abcd" in the second line
var_dump( strpos($string, "9", (strlen($string)-1)) );
echo "\n-- A heredoc null string --\n";
$str = <<<EOD
EOD;
var_dump( strpos($str, "\0") );
var_dump( strpos($str, NULL) );
var_dump( strpos($str, "0") );
echo "\n-- simple and complex syntax strings --\n";
$needle = 'world';
/* Simple syntax */
var_dump( strpos("Hello, world", "$needle") ); // works
var_dump( strpos("Hello, world'S", "$needle'S") ); // works
var_dump( strpos("Hello, worldS", "$needleS") ); // won't work
/* String with curly braces, complex syntax */
var_dump( strpos("Hello, worldS", "${needle}S") ); // works
var_dump( strpos("Hello, worldS", "{$needle}S") ); // works
echo "\n-- complex strings containing other than 7-bit chars --\n";
$str = chr(0).chr(128).chr(129).chr(234).chr(235).chr(254).chr(255);
echo "-- Positions of some chars in the string '$str' are as follows --\n";
echo chr(128)." => ";
var_dump( strpos($str, chr(128)) );
echo chr(255)." => ";
var_dump( strpos($str, chr(255), 3) );
echo chr(256)." => ";
var_dump( strpos($str, chr(256)) );
echo "\n*** Testing error conditions ***";
var_dump( strpos($string, "") );
var_dump( strpos() ); // zero argument
var_dump( strpos("") ); // null argument
var_dump( strpos($string) ); // without "needle"
var_dump( strpos("a", "b", "c", "d") ); // args > expected
var_dump( strpos($string, "test", strlen($string)+1) ); // offset > strlen()
var_dump( strpos($string, "test", -1) ); // offset < 0
var_dump( strpos(NULL, "") );
echo "\nDone";
fclose($resource1);
closedir($resource2);
?>
--EXPECTF--
*** Testing basic functionality of strpos() ***
int(0)
int(5)
int(5)
int(3)
int(10)
int(2)
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
int(1)
*** Testing stropos() to find various needles and a long string ***
Position of 'Hello world' is => int(0)
Position of 'WORLD' is => bool(false)
Position of ' ' is => int(46)
Position of ' ' is => int(46)
Position of ' 0' is => int(58)
Position of 'abcd' is => int(48)
Position of 'xyz' is => int(54)
Position of 'octal' is => int(61)
Position of '-3' is => int(19)
Position of '-3' is => bool(false)
Position of '-3.344' is => int(19)
Position of '-3.344' is => bool(false)
Position of '' is => int(46)
Position of 'NULL' is => int(31)
Position of '0' is => int(12)
Position of '0' is => int(46)
Position of '1' is => bool(false)
Position of 'TRUE' is => int(36)
Position of '1' is => int(13)
Position of '1' is => bool(false)
Position of '' is => int(46)
Position of 'FALSE' is => int(41)
Position of ' ' is => int(5)
Position of ' ' is => int(26)
Position of 'b' is => int(49)
Position of '\n' is => bool(false)
Position of '
' is => int(66)
Position of '12' is => int(13)
Position of '12twelve' is => bool(false)
Position of 'Hello world,012033 -3.3445 NULL TRUE FALSE abcd\xxyz 0 octal
abcd$:Hello world' is => int(0)
*** Testing strpos() with possible variations in offset ***
Position of 'Hello' with offset '1' is => int(74)
Position of 'Hello' with offset 'string' is => int(0)
Position of 'Hello' with offset '' is => int(0)
Position of 'Hello' with offset '' is => int(0)
Position of 'Hello' with offset '12string' is => int(74)
Position of 'Hello' with offset '0' is => int(0)
Position of 'Hello' with offset '1' is => int(74)
Position of 'Hello' with offset '' is => int(0)
Position of 'Hello' with offset '' is => int(0)
Position of 'Hello' with offset 'string12' is => int(0)
Position of 'Hello' with offset '12.3string' is => int(74)
*** Testing Miscelleneous input data ***
-- Passing objects as string and needle --
int(7)
-- Passing an array as string and needle --
Notice: Array to string conversion in %s on line %d
bool(false)
int(5)
int(12)
-- Passing Resources as string and needle --
%s
%s
-- Posiibilities with null --
bool(false)
bool(false)
bool(false)
int(2)
-- A longer and heredoc string --
int(0)
int(73)
int(73)
int(728)
-- A heredoc null string --
bool(false)
bool(false)
bool(false)
-- simple and complex syntax strings --
int(7)
int(7)
Notice: Undefined variable: needleS in %s on line %d
Warning: strpos(): Empty delimiter in %s on line %d
bool(false)
int(7)
int(7)
-- complex strings containing other than 7-bit chars --
-- Positions of some chars in the string ' ' are as follows --
=> int(1)
=> int(6)
=> int(0)
*** Testing error conditions ***
Warning: strpos(): Empty delimiter in %s on line %d
bool(false)
Warning: Wrong parameter count for strpos() in %s on line %d
NULL
Warning: Wrong parameter count for strpos() in %s on line %d
NULL
Warning: Wrong parameter count for strpos() in %s on line %d
NULL
Warning: Wrong parameter count for strpos() in %s on line %d
NULL
Warning: strpos(): Offset not contained in string in %s on line %d
bool(false)
Warning: strpos(): Offset not contained in string in %s on line %d
bool(false)
Warning: strpos(): Empty delimiter in %s on line %d
bool(false)
Done