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The 3 different equals
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Introduced in PHP4, funny in Y2018 ;-)
– mvorisek
Jul 13 '18 at 15:36
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What does PHP keyword 'var' do?
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It's for declaring class member variables in PHP4, and is no longer needed. It will work in PHP5, but will raise an E_STRICT warning in PHP from version 5.0.0 up to version 5.1.2, as of when it was deprecated. Since PHP 5.3, var has been un-deprecated and is a synonym f...
How to write into a file in PHP?
...cepter, after all), but there might still be a few hosts out there running PHP4.x .
– Duroth
Nov 20 '09 at 10:25
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How do I add indices to MySQL tables?
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ALTER TABLE `table` ADD INDEX `product_id_index` (`product_id`)
Never compare integer to strings in MySQL. If id is int, remove the quotes.
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json_encode/json_decode - returns stdClass instead of Array in PHP
... written about in this blog post: Using json_encode() and json_decode() in PHP4 (Jun 2009).
The concrete code is by Michal Migurski and by Matt Knapp:
JSON-PHP / january 2005
Code: http://mike.teczno.com/JSON/JSON.phps
Pear Proposal: http://pear.php.net/pepr/pepr-proposal-show.php?id=198
Pear Pa...
Converting string to Date and DateTime
... @Matthew yes, correct. But you never now, even today I found a PHP4.1 version still installed ...
– Roland
Nov 26 '18 at 16:45
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PHP - concatenate or directly insert variables in string
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Since php4 you can use a string formater:
$num = 5;
$word = 'banana';
$format = 'can you say %d times the word %s';
echo sprintf($format, $num, $word);
Source: sprintf()
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Iterate over each line in a string in PHP
...is defined as "\r\n", strtok will separate on either character - and as of PHP4.1.0, skip empty lines/tokens.
See the strtok manual entry:
http://php.net/strtok
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Best Practices: working with long, multiline strings in PHP?
...lating system which some consider a good successor (started on PHP5, so no PHP4 baggage).
– micahwittman
Dec 4 '09 at 20:48
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Authoritative position of duplicate HTTP GET query keys
...ld[0]=='foo'
field[1]=='bar'
I've seen this behavior in ASP, ASP.NET and PHP4.
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