Online PHP editor | rfc for tI4uO

@ 2018-10-16T07:41:08Z

#!/usr/bin/php

<?php

// input parameters
$api_key = "YOUR_API_KEY";

// default arguments
$backup_tag = "daily";
$num_of_backups = 3;

// sunday = weekly, 1st day of month = monthly
if(intval(date('w')) == 0)  $backup_tag = "weekly";
if(intval( date('d')) == 1) $backup_tag = "monthly";

$api_addr = "https://api.vultr.com/v1/";
$curl = "curl -s -H 'API-Key: " . $api_key . "' " . $api_addr;
$host = trim(shell_exec("hostname"));
$ip = trim(shell_exec("hostname -I"));

// find a subid that matches the current ip
$json = shell_exec( $curl . "server/list" );
$obj = json_decode($json,true);

$subid = 0;
foreach ($obj as $k => $v) {
  if( $v['main_ip'] == $ip ){
    $subid = $k;
    break;
  }
}

if($subid == 0){
  echo "Couldn't find a Vultr instance with ip " . $ip;
  exit(1);
}

// find old snapshot(s) to remove
$json = shell_exec( $curl . "snapshot/list" );
$obj = json_decode($json,true);

// filter non-backup snapshots
$obj = array_filter($obj, function ($x){
  return strpos($x['description'], $GLOBALS['ip'] . "-" . $GLOBALS['backup_tag']) !== false;
});

// reverse sort by creation time
usort($obj, function($x, $y){
    return $y['date_created'] <=> $x['date_created'];
});

// delete oldest snapshot(s)
for($i=0;$i<count($obj);$i++){
  if($i >= $num_of_backups-1){
    $id = $obj[$i]['SNAPSHOTID'];
    $cmd = $curl . "snapshot/destroy";
    shell_exec( $cmd . " --data 'SNAPSHOTID=" . $id . "'" );
  }
}

// create new snapshot
$cmd = $curl . "snapshot/create";
$cmd .= " --data 'SUBID=" . $subid . "'";
$cmd .= " --data 'description=" . $host . "-" . $ip . "-" . $backup_tag . "'";
shell_exec( $cmd );

?>

Output for git.master, git.master_jit, rfc.property-hooks: Warning: shell_exec(): Unable to execute 'hostname' in /in/tI4uO on line 18 Warning: shell_exec(): Unable to execute 'hostname -I' in /in/tI4uO on line 19 Warning: shell_exec(): Unable to execute 'curl -s -H 'API-Key: YOUR_API_KEY' https://api.vultr.com/v1/server/list' in /in/tI4uO on line 22 Warning: foreach() argument must be of type array|object, null given in /in/tI4uO on line 26 Couldn't find a Vultr instance with ip
Process exited with code 1.

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
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2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
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