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30 lines
729 B
30 lines
729 B
<?php
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// namespace ISO8583\Mapper;
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class AlphaNumeric extends AbstractMapper
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{
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public function pack($message)
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{
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$packed = bin2hex($message);
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if ($this->getVariableLength() > 0) {
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$length = bin2hex(sprintf('%0' . $this->getVariableLength() . 'd', strlen($packed) / 2));
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$packed = $length . $packed;
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}
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return $packed;
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}
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public function unpack(&$message)
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{
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if ($this->getVariableLength() > 0) {
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$length = (int)hex2bin(substr($message, 0, $this->getVariableLength() * 2));
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} else {
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$length = $this->getLength();
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}
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$parsed = hex2bin(substr($message, $this->getVariableLength() * 2, $length * 2));
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$message = substr($message, $length * 2 + $this->getVariableLength() * 2);
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return $parsed;
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}
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} |