Solution to php base64 decode garbled problem

php The solution to base64 decode garbled code: first open the corresponding PHP file; then add the statement "$encodedData = str_replace(' ',$encodedData);" before using "base64_decode" to decode.

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Problems that occurred a few days ago, GET and POST The string in the request was garbled after being base64_decoded. I checked that it was a problem with PHP. Just add the sentence:

  $encodedData = str_replace(' ','+',$encodedData);
  $decocedData = base64_decode($encodedData);

before using base64_decode to decode.

If the string is too long, it needs to be replaced first and then decoded in segments:

$encoded = str_replace(' ','+',$encoded);
$decoded = ""; 
for ($i=0; $i < ceil(strlen($encoded)/256); $i++) 
   $decoded = $decoded . base64_decode(substr($encoded,$i*256,256));

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