08-27-2007
Help in dealing with arra
I am readinga file lin by line and based craeting a arry of unique elemenst from the second column of the line. However when i coem out of the while loop my array becomes empty , can eny one tell me what I would be doing wrong
#!/bin/bash
logfile="./mylog.dat"
begin=100
end="$(( $begin + 1000 ))!d"
index=0
Isthere=0
ENGINES=""
sed "$begin, $end" $logfile | while read line
do
i=`echo $line | awk -F "," '{print $2}'`
Isthere=0
for item in "${ENGINES[@]}" ; do
if [ "$i" = "$item" ] ; then
echo "Aleady there "
Isthere=1
break
fi
done
if [ "$Isthere" -eq 0 ] ; then
echo "adding $Isthere"
ENGINES[$index]=`expr $i`
index=$(( $index + 1))
fi
# echo $line
done
echo $index ${#ENGINES[@]} # howe ever at this point array is empty
for i in "${ENGINES[@]}" ; do
echo $i
done
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LEARN ABOUT PHP
oci_field_type
OCI_FIELD_TYPE(3) OCI_FIELD_TYPE(3)
oci_field_type - Returns a field's data type name
SYNOPSIS
mixed oci_field_type (resource $statement, mixed $field)
DESCRIPTION
Returns a field's data type name.
PARAMETERS
o $statement
- A valid OCI statement identifier.
o $field
- Can be the field's index (1-based) or name.
RETURN VALUES
Returns the field data type as a string, or FALSE on errors.
EXAMPLES
Example #1
oci_field_type(3) example
<?php
// Create the table with:
// CREATE TABLE mytab (number_col NUMBER, varchar2_col varchar2(1),
// clob_col CLOB, date_col DATE);
$conn = oci_connect("hr", "hrpwd", "localhost/XE");
if (!$conn) {
$m = oci_error();
trigger_error(htmlentities($m['message']), E_USER_ERROR);
}
$stid = oci_parse($conn, "SELECT * FROM mytab");
oci_execute($stid, OCI_DESCRIBE_ONLY); // Use OCI_DESCRIBE_ONLY if not fetching rows
echo "<table border="1">
";
echo "<tr>";
echo "<th>Name</th>";
echo "<th>Type</th>";
echo "<th>Length</th>";
echo "</tr>
";
$ncols = oci_num_fields($stid);
for ($i = 1; $i <= $ncols; $i++) {
$column_name = oci_field_name($stid, $i);
$column_type = oci_field_type($stid, $i);
$column_size = oci_field_size($stid, $i);
echo "<tr>";
echo "<td>$column_name</td>";
echo "<td>$column_type</td>";
echo "<td>$column_size</td>";
echo "</tr>
";
}
echo "</table>
";
// Outputs:
// Name Type Length
// NUMBER_COL NUMBER 22
// VARCHAR2_COL VARCHAR2 1
// CLOB_COL CLOB 4000
// DATE_COL DATE 7
oci_free_statement($stid);
oci_close($conn);
?>
NOTES
Note
In PHP versions before 5.0.0 you must use ocicolumntype(3) instead. This name still can be used, it was left as alias of
oci_field_type(3) for downwards compatability. This, however, is deprecated and not recommended.
SEE ALSO
oci_num_fields(3), oci_field_name(3), oci_field_size(3).
PHP Documentation Group OCI_FIELD_TYPE(3)