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brankoajzele / cerToPem.php
Created January 21, 2013 13:13
Converting .cer to .pem via pure PHP, (no system, backticks, shell_exec, exec, etc.) to get the same result as with "openssl x509 -inform der -in cert.cer -out cert.pem". Note, I am not expert on certificates, etc. This specific certificate conversion simply worked for me.
<?php
$certificateCAcer = '/certificate.cer';
$certificateCAcerContent = file_get_contents($certificateCAcer);
/* Convert .cer to .pem, cURL uses .pem */
$certificateCApemContent = '-----BEGIN CERTIFICATE-----'.PHP_EOL
.chunk_split(base64_encode($certificateCAcerContent), 64, PHP_EOL)
.'-----END CERTIFICATE-----'.PHP_EOL;