Colleagues, programmers, good afternoon, I need your help.

The strtr string handler replaces keys with their value, and vice versa with the help of array_flip , but it doesn’t work out how I use the array_flip to swap the value back into their keys?

Code example:

<?php $code = array ( 'н' => '1', 'а' => '2', 'п' => '3', 'л' => '4', 'р' => '5' ); $text = 'нас предали явка провалена.'; $cipher = strtr($text, $code); echo "Оригинал: ($text)<br/> Шифровка: ($cipher)<br/>"; $rash = array_flip($cipher); echo "Расшифровка: ($rash)";

conclusion:

Original: (we were betrayed turnout failed.) Encryption: (12s 35ed24 and yav2 352424e12.)

Array_flip () expects parameter 1 to be array, string given on line number 18 Transcript: ()

  • one
    strtr returns a string ..... respectively, you have a string in $cipher ....... and they tell you about it that you substitute a string, not an array ........ respectively ... you need to have an inverse $code array, and in the $rash variable add the string in the same way as in $cipher just give $cipher as the input string, and instead of the characters being replaced - that reverse array - Alexey Shimansky
  • @ Alexey Shimansky on the example of the code pliz) - Vika Smirnova
  • Well, what, did I somehow vaguely explain? - Alexey Shimansky
  • parsed your explanation by the words ... and everything worked out. - Vika Smirnova
  • one
    Here you go. fine. Only in $otv = strtr($text, $rash); should not be $text , but $cipher ..... If that inverse array (which is inverse to the $code array) is not used anywhere, then you can immediately write $rash = strtr($cipher, array_flip($code)); - Alexey Shimansky

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