Variables in PHP - Revision history

Kenneth John Odle: Added "Needs Attention" template

2017-07-08T18:02:15Z

Added "Needs Attention" template

2013-12-11T13:19:44Z

Basics

2013-12-10T23:24:03Z

Examples of Acceptable Variable Names

2013-12-10T23:22:09Z

Basics

2012-08-02T16:42:02Z

2012-08-02T16:41:38Z

2012-07-31T17:30:04Z

2012-07-31T17:16:22Z

2012-07-30T15:30:22Z

2012-07-30T15:27:34Z

@@ Line 1: / Line 1: @@
 {{Template:PHP4 5}}
 [[Category:PHP]]
 == Basics ==

@@ Line 6: / Line 6: @@
 Variables in PHP:
-#always begin with a dollar sign (<span class="mono">$</span>)
+*are always preceded by a dollar sign (<span class="mono">$</span>)
-#start with a letter or underscore (<span class="mono">_</span>)
+*start with a letter or underscore (<span class="mono">_</span>)
-#may contain any number of letters, numbers, and underscores
+*may contain any number of letters, numbers, and underscores
-#are case-sensitive
+*are case-sensitive
 ===Examples of Acceptable Variable Names===

@@ Line 13: / Line 13: @@
 ===Examples of Acceptable Variable Names===
 <pre>
-$var<br />
+$var
-$_var<br />
+$_var
-$_Var<br />
+$_Var
->$VAR<br />
+$VAR
-$VAR_001<br />
+$VAR_001
 </pre>
 This is not a comprehensive list, merely examples.
 ===Examples of Unacceptable Variable Names===

@@ Line 6: / Line 6: @@
 Variables in PHP:
-#always begin with a dollar sign ($)
+#always begin with a dollar sign (<span class="mono">$</span>)
-#start with a letter or underscore (_)
+#start with a letter or underscore (<span class="mono">_</span>)
 #may contain any number of letters, numbers, and underscores
 #are case-sensitive
@@ Line 29: / Line 29: @@
 <pre>var$</pre> (Variables names must '''begin''' with a dollar sign.)
 ==Types of Variables==

← Older revision		Revision as of 16:42, 2 August 2012
Line 37:		Line 37:
	To assign a value to a variable, use a single equal sign (=)		To assign a value to a variable, use a single equal sign (=)

−	<~~code~~>$var = "Hello, world."</~~code~~>	+	<pre>$var = "Hello, world."</pre>

@@ Line 11: / Line 11: @@
 #are case-sensitive
-===Acceptable Variable Names===
+===Examples of Acceptable Variable Names===
+<code>
-<nowiki>$var</nowiki><br />
+$var<br />
 $_var<br />
-<nowiki>$_var</nowiki><br />
+$_Var<br />
+>$VAR<br />
-<nowiki>$_Va</nowiki>r<br />
+$VAR_001<br />
+</code>
 This is not a comprehensive list, merely examples.
-===Unacceptable Variable Names===
+===Examples of Unacceptable Variable Names===
-<nowiki>$var*</nowiki> (Variable names may only contain letters, numbers, and underscores.)<br />
+<code>$var*</code> (Variable names may only contain letters, numbers, and underscores.)<br />
-<nowiki>$var #1</nowiki> (Variable names may not contain # or spaces.)<br />
+<code>$var #1</code> (Variable names may not contain # or spaces.)<br />
-<nowiki>var$</nowiki> (Variables names must '''begin''' with a dollar sign.)
+<code>var$</code> (Variables names must '''begin''' with a dollar sign.)
@@ Line 40: / Line 37: @@
 To assign a value to a variable, use a single equal sign (=)
-<nowiki>$var = "Hello, world."</nowiki>
+<code>$var = "Hello, world."</code>

← Older revision		Revision as of 15:27, 30 July 2012
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		+	{{Template:PHP4}}
		+	{{Template:PHP5}}
	[[Category:PHP]]		[[Category:PHP]]
	[[Category:Articles_needing_attention]]		[[Category:Articles_needing_attention]]