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masihyeganeh/reader.php

Created March 14, 2014 16:32
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Weird PHP session lock
Raw
reader.php
<?php
set_time_limit(0);
session_start();
print $_SESSION['something'];
Raw
writer.php
<?php
set_time_limit(0);
session_start();
$_SESSION['something'] = 0;
for ($i=0; $i < 1000; $i++) {
$_SESSION['something']++;
sleep(10);
}
@masihyeganeh
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If we execute writer.php, reader.php won't load until writer finishes completely

@masihyeganeh
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OK, found the solution:

<?php

set_time_limit(0);

session_start();
$_SESSION['something'] = 0;
session_write_close();

for ($i=0; $i < 1000; $i++) { 
    session_start();
    $_SESSION['something']++;
    session_write_close();
    sleep(10);
}

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