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|
--TEST--
Test strtr() function : usage variations - unexpected inputs for 'str' argument
--FILE--
<?php
/* Prototype : string strtr(string $str, string $from[, string $to]);
string strtr(string $str, array $replace_pairs);
* Description: Translates characters in str using given translation tables
* Source code: ext/standard/string.c
*/
/* Test strtr() function: with unexpected inputs for 'str'
* and expected type for 'from' & 'to' arguments
*/
echo "*** Testing strtr() function: with unexpected inputs for 'str' ***\n";
//get an unset variable
$unset_var = 'string_val';
unset($unset_var);
//defining a class
class sample {
public function __toString() {
return "sample object";
}
}
//getting the resource
$file_handle = fopen(__FILE__, "r");
// array with different values
$strings = array (
// integer values
/*1*/ 0,
1,
-2,
// float values
/*4*/ 10.5,
-20.5,
10.1234567e10,
// array values
/*7*/ array(),
array(0),
array(1, 2),
// boolean values
/*10*/ true,
false,
TRUE,
FALSE,
// null vlaues
/*14*/ NULL,
null,
// objects
/*16*/ new sample(),
// resource
/*17*/ $file_handle,
// undefined variable
/*18*/ @$undefined_var,
// unset variable
/*19*/ @$unset_var
);
//defining 'from' argument
$from = "012atm";
//defining 'to' argument
$to = "atm012";
// loop through with each element of the $strings array to test strtr() function
$count = 1;
for($index = 0; $index < count($strings); $index++) {
echo "-- Iteration $count --\n";
$str = $strings[$index];
var_dump( strtr($str, $from, $to) );
$count ++;
}
fclose($file_handle); //closing the file handle
?>
===DONE===
--EXPECTF--
*** Testing strtr() function: with unexpected inputs for 'str' ***
-- Iteration 1 --
string(1) "a"
-- Iteration 2 --
string(1) "t"
-- Iteration 3 --
string(2) "-m"
-- Iteration 4 --
string(4) "ta.5"
-- Iteration 5 --
string(5) "-ma.5"
-- Iteration 6 --
string(12) "tatm34567aaa"
-- Iteration 7 --
Warning: strtr() expects parameter 1 to be string, array given in %s on line %d
NULL
-- Iteration 8 --
Warning: strtr() expects parameter 1 to be string, array given in %s on line %d
NULL
-- Iteration 9 --
Warning: strtr() expects parameter 1 to be string, array given in %s on line %d
NULL
-- Iteration 10 --
string(1) "t"
-- Iteration 11 --
string(0) ""
-- Iteration 12 --
string(1) "t"
-- Iteration 13 --
string(0) ""
-- Iteration 14 --
string(0) ""
-- Iteration 15 --
string(0) ""
-- Iteration 16 --
string(13) "s02ple objec1"
-- Iteration 17 --
Warning: strtr() expects parameter 1 to be string, resource given in %s on line %d
NULL
-- Iteration 18 --
string(0) ""
-- Iteration 19 --
string(0) ""
===DONE===
|
