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20123337
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2013-11-21T14:17:34.660
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2016-06-07T06:25:00.340
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2016-06-07T06:25:00.340
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<p>The solution is to ensure that you are using the <strong>mysqlnd</strong> driver for php.</p> <h2>How do you know that you're not using mysqlnd?</h2> <p>When viewing <code>php -i</code>, there will be <em>no</em> mention of "mysqlnd". The <code>pdo_mysql</code> section will have something like this:</p> <pre><code>pdo_mysql PDO Driver for MySQL => enabled Client API version => 5.1.72 </code></pre> <h2>How do you install it?</h2> <p>Most installation guides for L/A/M/P suggest <code>apt-get install php5-mysql</code> but the native driver for MySQL is installed by a different package: <code>php5-mysqlnd</code>. I found that this was available with the <strong>ppa:ondrej/php5-oldstable</strong>.</p> <p>To switch to the new driver (on Ubuntu):</p> <ul> <li>Remove the old driver:<br> <code>apt-get remove php5-mysql</code></li> <li>Install the new driver:<br> <code>apt-get install php5-mysqlnd</code></li> <li>Restart apache2:<br> <code>service apache2 restart</code></li> </ul> <h2>How do I check that the driver is being used?</h2> <p>Now <code>php -i</code> will mention "mysqlnd" explicitly in the <code>pdo_mysql</code> section:</p> <pre><code>pdo_mysql PDO Driver for MySQL => enabled Client API version => mysqlnd 5.0.10 - 20111026 - $Id: e707c415db32080b3752b232487a435ee0372157 $ </code></pre> <h2>PDO settings</h2> <p>Ensure that <code>PDO::ATTR_EMULATE_PREPARES</code> is <code>false</code> (check your defaults or set it):<br> <code>$pdo->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);</code></p> <p>Ensure that <code>PDO::ATTR_STRINGIFY_FETCHES</code> is <code>false</code> (check your defaults or set it):<br> <code>$pdo->setAttribute(PDO::ATTR_STRINGIFY_FETCHES, false);</code></p> <h2>Returned values</h2> <ul> <li>Floating-point types (FLOAT, DOUBLE) are returned as PHP floats.</li> <li>Integer types (INTEGER, INT, SMALLINT, TINYINT, MEDIUMINT, BIGINT †) are returned as PHP integers.</li> <li>Fixed-Point types (DECIMAL, NUMERIC) are returned as strings.</li> </ul> <p>† BIGINTs with a value greater than a 64 bit signed int (9223372036854775807) will return as a string (or 32 bits on a 32 bit system)</p> <pre><code> object(stdClass)[915] public 'integer_col' => int 1 public 'double_col' => float 1.55 public 'float_col' => float 1.5 public 'decimal_col' => string '1.20' (length=4) public 'bigint_col' => string '18446744073709551615' (length=20) </code></pre>
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