note 76834 deleted from function.is-string by danbrown

From: Date: Mon, 01 Nov 2010 14:09:06 +0000
Subject: note 76834 deleted from function.is-string by danbrown
References: 1  Groups: php.notes 
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Note Submitter: Dainix Zsigmond ---- To php dot net at oui dot jp: It's going to return a string if the variable's value is encased around quotes or apostrophes, period. Be it a '0' or a '1', it's a string all around. The index in an array is a little bit of a different story. Sample coding is below: <?php $ar = array('this is a string.', '38', '038', 0382, 3892.283); $ar2 = array('S1' => 'string.', 'S2' => 'a string.', '3' => 3827, '3.82.' => '2222', '-1' => 'foo'); foreach($ar as $num => $string) { if (is_string($string)) { echo 'Yes. <br />'; } else { echo 'No. <br />'; } } print_r($ar); foreach($ar2 as $num => $string) { if (is_string($num)) { echo 'Yes. <br />'; } else { echo 'No. <br />'; } } print_r($ar2); ?> The first foreach contains a simple if/then statement that checks if the array value is a string or not, which works correctly (Yes, Yes, Yes, No, No). The second checks if the index identifier is a string. It returns Yes, Yes, No, and Yes. Printing the array: Array ( [S1] => string. [S2] => a string. [3] => 3827 [3.82] => 2222 [-1] => foo) The index identifier will be marked as a string if the identifier is not an integer above zero.

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