Question

How to remove trailing nulls (0) from byte array in PHP

Answer 1

$byteArray = "\x50\x48\x50\x00\x00\x00\x00"; 

$trimmedArray = rtrim($byteArray, "\x00");

echo $trimmedArray . "\n";
echo bin2hex($trimmedArray); 

  

/*
run:
  
PHP
504850
   
*/

 

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Answer 2

$byteArray = "\x50\x48\x50\x00\x00\x00\x00"; 

$trimmedArray = preg_replace('/\x00+$/', '', $byteArray);

echo $trimmedArray . "\n";
echo bin2hex($trimmedArray); 

  

/*
run:
  
PHP
504850
   
*/

 

70+ SQL courses for beginners and professionals