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James MacDonald
Courses Plus Student 6,268 PointsArray syntax in PHP 5.2.13?
Hi, I'm following along on a server running PHP 5.2.13, and it looks like the lesson is using 5.4+ array syntax. Is there an easy way to "convert" the lesson code to this crusty old version? I tried many times to get the arrays to work correctly with no luck. any help is appreciated. Happy to provide code samples if that would help.
3 Answers
Codin - Codesmite
8,600 PointsAs of PHP 5.4 there is new shorthand array syntax.
Pre PHP 5.4:
<?php
/* Initialize new empty array */
$array = array();
/* Associative Array */
$array = array(
"key" => "value",
"key" => "value"
);
/* Non-Associative Array */
$array = array("value", "value");
/* Associative Array Push */
array_push($array, "key", "value");
/* Non-Associative Array Push */
array_push($array, "value");
?>
PHP 5.4+ :
<?php
/* Initialize new empty array */
$array = [];
/* Associative Array */
$array = [
"key" => "value",
"key" => "value"
];
/* Non-Associative Array */
$array = ["value", "value"];
/* Associative Array Push */
$array["key"] = "value"; /* Will change value rather than push if key exists already */
/* Non-Associative Array Push */
$array[] = "value";
?>
Hope this helps :)
James MacDonald
Courses Plus Student 6,268 PointsNot sure what I was doing wrong earlier, but I figured this out. Square brackets (aside from the array index) need to be converted to array().
So this:
<?php
$catalog[101] = [
"title" => "Design Patterns",
"authors" => [
"Erich Gamma",
"Richard Helm"
],
"publisher" => "Prentice Hall"
];
?>
becomes this:
<?php
$catalog[101] = array(
"title" => "Design Patterns",
"authors" => array(
"Erich Gamma",
"Richard Helm"
),
"publisher" => "Prentice Hall"
);
?>
Sorry - can't figure out how to indent code in this editor...
Codin - Codesmite
8,600 PointsI edited your post so you can see how to post php to the forum (if you go to edit your post you can see how I have done it (it is hard to explain in a reply as if I type what to do it turns into a codeblock).
So basically it is 3 tildes ( ` ) then the code type (in the case php, you can change it to ruby, html, css, javascript, python etc to change the colour linting).
Then at the end of your code 3 more tildes ( ` ) to close the code block.
For PHP to get colour linting you have to use php opening and closing tags around your code
<?php
?>
Also leave a space between your text/code and both sets of 3 tildes ( ` ), I find if you do not have a space between them it can have weird results.
James MacDonald
Courses Plus Student 6,268 PointsHad to look it up, but this: (`) is called a "backtick", whereas (~) is the tilde. So much learning here... Thanks again.
James MacDonald
Courses Plus Student 6,268 PointsJames MacDonald
Courses Plus Student 6,268 PointsThat's brilliant. Thank you.