PHP mysqli: thread_safe() function
mysqli_thread_safe() function / mysqli::thread_safe
The mysqli_thread_safe() function / mysqli::thread_safe returns whether the client library is compiled as thread-safe.
Syntax:
bool mysqli_thread_safe ( void )
Usage
mysqli_thread_safe();
Return value:
TRUE if the client library is thread-safe, otherwise FALSE.
Version: PHP 5, PHP 7
Example:
<?php
if(mysqli_connect_errno($con))
{
echo "Unable to connect: ".mysqli_connect_error();
}
echo mysqli_thread_safe();
mysqli_close($con);
?>
See also
Previous: thread_id
Next: use_result
PHP: Tips of the Day
To use the constant simply use its name:
Example:
if (EARTH_IS_FLAT) {
print "Earth is flat";
}
print APP_ENV_UPPERCASE;
Output:
or if you don't know the name of the constant in advance, use the constant function:
// this code is equivalent to the above code
$const1 = "EARTH_IS_FLAT";
$const2 = "APP_ENV_UPPERCASE";
if (constant($const1)) {
print "Earth is flat";
}
print constant($const2);
Output:
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