Sean Cannella
79 linhas
1.4 KiB
PHP
79 linhas
1.4 KiB
PHP
<?php
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/* Prototype : array array_slice(array $input, int $offset [, int $length [, bool $preserve_keys]])
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* Description: Returns elements specified by offset and length
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* Source code: ext/standard/array.c
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*/
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/*
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* Pass different data types as $length argument to array_slice to test behaviour
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*/
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echo "*** Testing array_slice() : usage variations ***\n";
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// Initialise function arguments not being substituted
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$input_array = array('one' => 1, 2, 'three' => 3, 4);
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$offset = 2;
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//get an unset variable
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$unset_var = 10;
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unset ($unset_var);
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// heredoc string
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$heredoc = <<<EOT
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hello world
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EOT;
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// unexpected values to be passed to $length argument
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$inputs = array(
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// int data
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/*1*/ 0,
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1,
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12345,
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-2345,
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// float data
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/*5*/ 10.5,
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-10.5,
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12.3456789000e10,
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12.3456789000E-10,
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.5,
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// null data
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/*10*/ NULL,
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null,
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// boolean data
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/*12*/ true,
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false,
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TRUE,
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FALSE,
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// empty data
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/*16*/ "",
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'',
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array(),
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// string data
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/*19*/ "string",
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'string',
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$heredoc,
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// undefined data
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/*22*/ @$undefined_var,
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// unset data
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/*23*/ @$unset_var,
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);
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// loop through each element of $inputs to check the behavior of array_slice
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$iterator = 1;
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foreach($inputs as $input) {
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echo "\n-- Iteration $iterator --\n";
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var_dump( array_slice($input_array, $offset, $input) );
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$iterator++;
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};
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echo "Done";
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?>
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