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Achieving Real-Time Output with 'echo' in PHP
In the context of PHP scripts that focus on client-side logging, the delay in output display can be frustrating. To address this, it's imperative to ensure that each 'echo' call results in immediate transfer of data to the client.
While employing methods like 'ob_start()' and 'ob_flush()' may seem like viable options, they have been known to yield inconsistent results. A more effective approach involves specifying a character set within the header, as exemplified below:
header( 'Content-type: text/html; charset=utf-8' ); echo 'Begin ...<br />'; for( $i = 0 ; $i < 10 ; $i++ ) { echo $i . '<br />'; ob_flush(); flush(); sleep(1); } echo 'End ...<br />';
This solution ensures that the 'echo' output is immediately visible to the client, allowing for real-time logging and progress updates.
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