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<p>pg_field_size
<LINK TITLE="PostgreSQL Functions" HREF="ref.pgsql.html"><LINK TITLE="pg_field_prtlen" HREF="function.pg-field-prtlen.html"><LINK TITLE="pg_field_type_oid" HREF="function.pg-field-type-oid.html">
<p><a href="function.pg-field-prtlen.html">Пред.</a>
<p><a href="function.pg-field-type-oid.html">След.</a>
<p><h1><a name="function.pg-field-size"></a>pg_field_size</h1><div><a name="AEN127410"></a>
<p>(PHP 4 &#62;= 4.2.0, PHP 5)pg_field_size --
<p>Returns the internal storage size of the named field
<p></div><div><a name="AEN127413"></a><h2>Описание</h2>int pg_field_size (resource result, int field_number)
<p>- pg_field_size() returns the internal storage
<p>size (in bytes) of the field number in the given PostgreSQL
<p><VAR CLASS="parameter">result.
<p><DIV><BLOCKQUOTE>
<p>Замечание:
<p>This function used to be called pg_fieldsize().
<p></BLOCKQUOTE></div></div><div><a name="AEN127430"></a><h2>Список параметров</h2>
<p>-
<p><DIV CLASS="variablelist"><DL><DT><VAR CLASS="parameter">result</DT><DD>
<p>- PostgreSQL query result resource, returned by <a href="function.pg-query.html">pg_query()</a>,
<p><a href="function.pg-query-params.html">pg_query_params()</a> or <a href="function.pg-execute.html">pg_execute()</a>
<p>(among others).
<p></DD><DT><VAR CLASS="parameter">field_number</DT><DD>
<p>- Field number, starting from 0.
<p></DD></DL></div>
<p></div><div><a name="AEN127447"></a><h2>Возвращаемые значения</h2>
<p>- The internal field storage size (in bytes). -1 indicates a variable
<p>length field. <TT CLASS="constant">FALSE is returned on error.
<p></div><div><a name="AEN127451"></a><h2>Примеры</h2>
<p>- <table><tr><td><DIV><a name="AEN127454"></a>
<p>Пример 1. Getting information about fields<table><tr><td><code>
<p>&lt;?php
<p>$dbconn = pg_connect("dbname=publisher") or die("Could not connect");
<p>
<p>$res = pg_query($dbconn, "select * from authors where author = 'Orwell'");
<p>$i = pg_num_fields($res);
<p>for ($j = 0; $j &lt; $i; $j++) {
<p>echo "column $j\n";
<p>$fieldname = pg_field_name($res, $j);
<p>echo "fieldname: $fieldname\n";
<p>echo "printed length: " . pg_field_prtlen($res, $fieldname). " characters\n";
<p>echo "storage length: " . pg_field_size($res, $j). " bytes\n";
<p>echo "field type: " . pg_field_type($res, $j). " \n\n";
<p>}
<p>?>
<p>
<p></code></TABLE>
<p>Результат выполнения данного примера:<table><tr><td><PRE>column 0
<p>fieldname: author
<p>printed length: 6 characters
<p>storage length: -1 bytes
<p>field type: varchar
<p>column 1
<p>fieldname: year
<p>printed length: 4 characters
<p>storage length: 2 bytes
<p>field type: int2
<p>column 2
<p>fieldname: title
<p>printed length: 24 characters
<p>storage length: -1 bytes
<p>field type: varchar</PRE></TABLE></div></TABLE>
<p></div><div><a name="AEN127459"></a><h2>Смотрите также</h2>
<p>-
<p><table><tr><td><a href="function.pg-field-prtlen.html">pg_field_prtlen()</a><tr><td><a href="function.pg-field-type.html">pg_field_type()</a></TABLE>
<p><a href="function.pg-field-prtlen.html">Пред.</a>
<p><a href="index.html">Начало</a>
<p><a href="function.pg-field-type-oid.html">След.</a>
<p>pg_field_prtlen
<p><a href="ref.pgsql.html">Уровень выше</a>
<p>pg_field_type_oid
22222
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