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update_all_channels
(ReachRSS >= 0.91)
update_all_channels
-- Reloads
/ refreshes all subscribed channels and saves
Description
boolean update_all_channels ( [ boolean force_reload ] )
This function runs through each channel and calls update_channel() for each, then calls save_data(). If you call startup() you don't need to call this function, as startup() automatically calls update_all_channels().
If force_reload is set to true, all channels will be reloaded from the servers, regardless if their cache time has expired or not.
update_all_channels() returns true on success, false if there were any HTTP errors or if there was a problem while saving the data file. If the error was an HTTP error a message will be output.
Example 1. update_all_channels() example
$ReachRSS = new ReachRSS();
$ReachRSS->load_data();
$ReachRSS->add_channel("http://www.comicalert.com/public/popular24.xml");
// You do not actually need to call update_all_channel() after
// add_channel(), but this is an example, so...
$ReachRSS->update_all_channels();
// No need to call save_data() here, because update_all_channels() handles
// it automatically.
This example will subscribe ReachRSS to the "most popular comics" feed at Comic Alert! and then immediatly update it and any other channels you're subscribed to.
See also update_channel(), save_data(), startup(), channel_exists(), channels()
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