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National_Instruments

200-500 · Question #195

The following code piece should print "PHP is cool", but unexpectedly, it just prints "cool". How would you correct it? echo str_replace('PHP is a pain.', 'a pain', 'cool');

The correct answer is B. str_replace('a pain', 'cool', 'PHP is a pain.'). See the full explanation below for the reasoning.

Question

The following code piece should print "PHP is cool", but unexpectedly, it just prints "cool". How would you correct it? echo str_replace('PHP is a pain.', 'a pain', 'cool');

Options

  • Astr_replace('PHP is a pain.', 'cool', 'a pain');
  • Bstr_replace('a pain', 'cool', 'PHP is a pain.');
  • Cstr_replace('cool', 'a pain', 'PHP is a pain.');

How the community answered

(43 responses)
  • A
    16% (7)
  • B
    77% (33)
  • C
    7% (3)

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