输出缓冲控制
flush
<?php
echo 'Loading...';
flush();
sleep(2);
ob_clean
<?php
ob_start();
echo 'Loading...';
ob_clean();
ob_end_clean
<?php
ob_start();
echo 'Loading...';
ob_end_clean();
ob_end_flush
<?php
ob_start();
echo 'Loading...';
ob_end_flush();
ob_flush
<?php
ob_start();
echo 'Loading...';
ob_flush();
ob_get_clean
<?php
ob_start();
echo 'Loading...';
var_dump(ob_get_clean());
ob_get_contents
<?php
ob_start();
echo 'Loading...';
var_dump(ob_get_contents());
ob_get_flush
<?php
ob_start();
echo 'Loading...';
var_dump(ob_get_flush());
ob_get_length
<?php
ob_start();
echo 'Loading...';
var_dump(ob_get_length());
ob_get_level
<?php
ob_start();
echo 'Loading...';
var_dump(ob_get_level());
ob_get_status
<?php
ob_start();
echo 'Loading...';
var_dump(ob_get_status());
ob_gzhandler
<?php
ob_start('ob_gzhandler');
ob_implicit_flush
<?php
ob_implicit_flush();
ob_implicit_flush(true);
ob_implicit_flush(false);
ob_list_handlers
<?php
ob_start();
var_dump(ob_list_handlers());
ob_start
<?php
var_dump(ob_start());
var_dump(ob_start('ob_gzhandler'));
output_add_rewrite_var
<?php
var_dump(output_add_rewrite_var('foo', 'bar'));
var_dump('<form action="example.php"></form>');
output_reset_rewrite_vars
<?php
var_dump(output_add_rewrite_var('foo', 'bar'));
var_dump(output_reset_rewrite_vars());
var_dump('<form action="example.php"></form>');