01-08-2009
It is possible in perl to read a file into an array (memory structure), do things to the array, then output the array into a file, possibly overwriting the same file. This is probably harder than simply making a temp file.
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Hello all:
I have a following textfile data with name inst1.txt
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DTL|H|5464-1|0|02-02-2008|02-03-2008||||F|||||||||
DTL|D|5464-1|1|02-02-2008|02-03-2008|1||JJJ
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i need to add a new field in a pipe delimited line. the field will be the current date today.
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I have a file which was pipe delimited, I need to make it tab delimited. I tried with sed but no use
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Hello All,
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I am trying to pivot a comma separated field in a pipe delimited file. Data looks something like this:
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Hi,
I have a pipe delimited file as below and I need to replace the 2nd column of each line with null values.
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LEARN ABOUT PHP
array_merge
ARRAY_MERGE(3) 1 ARRAY_MERGE(3)
array_merge - Merge one or more arrays
SYNOPSIS
array array_merge (array $array1, [array $...])
DESCRIPTION
Merges the elements of one or more arrays together so that the values of one are appended to the end of the previous one. It returns the
resulting array.
If the input arrays have the same string keys, then the later value for that key will overwrite the previous one. If, however, the arrays
contain numeric keys, the later value will not overwrite the original value, but will be appended.
Values in the input array with numeric keys will be renumbered with incrementing keys starting from zero in the result array.
PARAMETERS
o $array1
- Initial array to merge.
o $...
- Variable list of arrays to merge.
RETURN VALUES
Returns the resulting array.
EXAMPLES
Example #1
array_merge(3) example
<?php
$array1 = array("color" => "red", 2, 4);
$array2 = array("a", "b", "color" => "green", "shape" => "trapezoid", 4);
$result = array_merge($array1, $array2);
print_r($result);
?>
The above example will output:
Array
(
[color] => green
[0] => 2
[1] => 4
[2] => a
[3] => b
[shape] => trapezoid
[4] => 4
)
Example #2
Simple array_merge(3) example
<?php
$array1 = array();
$array2 = array(1 => "data");
$result = array_merge($array1, $array2);
?>
Don't forget that numeric keys will be renumbered!
Array
(
[0] => data
)
If you want to append array elements from the second array to the first array while not overwriting the elements from the first
array and not re-indexing, use the + array union operator:
<?php
$array1 = array(0 => 'zero_a', 2 => 'two_a', 3 => 'three_a');
$array2 = array(1 => 'one_b', 3 => 'three_b', 4 => 'four_b');
$result = $array1 + $array2;
var_dump($result);
?>
The keys from the first array will be preserved. If an array key exists in both arrays, then the element from the first array will
be used and the matching key's element from the second array will be ignored.
array(5) {
[0]=>
string(6) "zero_a"
[2]=>
string(5) "two_a"
[3]=>
string(7) "three_a"
[1]=>
string(5) "one_b"
[4]=>
string(6) "four_b"
}
Example #3
array_merge(3) with non-array types
<?php
$beginning = 'foo';
$end = array(1 => 'bar');
$result = array_merge((array)$beginning, (array)$end);
print_r($result);
?>
The above example will output:
Array
(
[0] => foo
[1] => bar
)
SEE ALSO
array_merge_recursive(3), array_replace(3), array_combine(3), array operators.
PHP Documentation Group ARRAY_MERGE(3)