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Category Archives: PHP
Descending sort of Elasticsearch results with PHP API
Using the Elasticsearch PHP API to do an ascending sort is simple:
$params['sort'] = array('updated_at');
However I found performing a descending sort much less intuitive. Eventually I figured out it should be:
$params['sort'] = array('updated_at:desc');
Postgresql date formatting
Preamble
Formatting of data should only occur in the final steps of output. Until that point, and as a rule, internally data should remain in a base format that can easily be converted into many others – without being converted into another more basic format first.
For example Unix timestamp for dates or a floating point number for money. Both can readily be converted into more expressive formats without writing code to first parse or disassemble the initial format.
However in a situation where the flow is very specific and unlikely to ever be used to generate a different output it is permissible, even desirable, to generate data in the format it will be finally outputted.
PHP cURL over SSL
WARNING: Using this method will open you to Man-In-Middle_Attacks. As suggested by Filip Procházka in the comments below, you should get an up to date CA root certificate bundle and use CURLOPT_CAINFO. This article suggests a secure method for dealing with self-signed certificates.
If you’re getting stuck trying to use cURL over https in PHP, try setting both the verify peer and verify host options to false:
$url = 'https://myverysecret.domain/secrets/';
$curl = curl_init($url);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
curl_exec($curl);