Base64 Zeichenfolge, wenn

Question

zum Server Hinzufügen einiger Zeichen senden ich an einer Anwendung arbeite und ich bin Base64-codierte Zeichenfolge von Bildern zum Server senden. Die Zeichenfolge ist korrekt und wenn ich die Zeichenfolge aus dem XCode-Debugger-Fenster kopiere und ein Bild von PHP erzeuge, erzeugt es ein korrektes gültiges Bild. Aber wenn ich die gleiche Zeichenfolge über Webservice sende, fügt es einige zusätzliche Zeichen in der Zeichenfolge hinzu und das Bild wird beschädigt.

Wie diese zusätzlichen Zeichen aus dieser Zeichenfolge entfernt zu bekommen. Hier

ist das Base64-String für das Bild von XCode Debugger:

/9j/4AAQSkZJRgABAQAASABIAAD/4QBYRXhpZgAATU0AKgAAAAgAAgESAAMAAAAB 
AAEAAIdpAAQAAAABAAAAJgAAAAAAA6ABAAMAAAABAAEAAKACAAQAAAABAAABd6AD 
AAQAAAABAAABHgAAAAD/7QA4UGhvdG9zaG9wIDMuMAA4QklNBAQAAAAAAAA4QklN 
BCUAAAAAABDUHYzZjwCyBOmACZjs+EJ+/8AAEQgBHgF3AwEiAAIRAQMRAf/EAB8A 
AAEFAQEBAQEBAAAAAAAAAAABAgMEBQYHCAkKC//EALUQAAIBAwMCBAMFBQQEAAAB 
fQECAwAEEQUSITFBBhNRYQcicRQygZGhCCNCscEVUtHwJDNicoIJChYXGBkaJSYn 
KCkqNDU2Nzg5OkNERUZHSElKU1RVVldYWVpjZGVmZ2hpanN0dXZ3eHl6g4SFhoeI 
iYqSk5SVlpeYmZqio6Slpqeoqaqys7S1tre4ubrCw8TFxsfIycrS09TV1tfY2drh 
4uPk5ebn6Onq8fLz9PX29/j5+v/EAB8BAAMBAQEBAQEBAQEAAAAAAAABAgMEBQYH 
CAkKC//EALURAAIBAgQEAwQHBQQEAAECdwABAgMRBAUhMQYSQVEHYXETIjKBCBRC 
kaGxwQkjM1LwFWJy0QoWJDThJfEXGBkaJicoKSo1Njc4OTpDREVGR0hJSlNUVVZX 
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Li4uLi4uLi4uLi4uLi4uLi4uLi4uLi4uLi4uLi4uLi4uLi4uLv/dAAQAGP/aAAwD 
AQACEQMRAD8A+qaKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKK 
KKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKK 
KKACiiigAooooA//0PqmiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKK 
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KKACiiigAooooAKKKKAP/9H6pooooAKKKKACiiigAooooAKKK5rxlr6eF/C+o68x 
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FABRRRQAUUUUAFFFFABRRRQAUUUUAFFFFABRRRQAUUUUAFFFFABRRRQAUUUUAFFF 
FABRRRQAUUUUAFFFFABRRRQB/9P6pooooAKKKKACiiigAooooAK+K/2ivn8d2a/9 
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n/azivT6KKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiig 
AooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigD//V+qaKKKACiiig 
AooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiig 
AooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooA//1vqmiiig 
AooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiig 
AooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKAP/9f6 
pooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiig 
AooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiig 
D//Q+qaKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiig 
AooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiig 
AooooA//2Q== 

Und hier wird die Zeichenfolge vom Server hallte:

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Answer 1

Wie in den Kommentaren erwähnt, alle 64 Zeichen eines " rn "wird eingefügt. Außerdem werden "+" durch "" ersetzt. Lass uns das umkehren.
definieren $s mit Ihrer Ausgabe string:

$chars = str_split($s); 
for($i = 64; $i < strlen($s); $i+=66) { 
    unset($chars[$i]); 
    unset($chars[$i+1]); 
} 
$new_s = str_replace(" ", "+", implode($chars)); 

for($i = 0; $i < strlen($new_s); $i++){ 
    if($i > 0 && $i % 64 == 0) 
     echo "<br />"; 
    echo $new_s[$i]; 
} 

Demo: http://sandbox.onlinephpfunctions.com/code/33ef917c4403560c469d8e9eea2ae88b4c6b732e
Diff: https://www.diffchecker.com/ajAv578C