diff --git a/pages/The-Basics.md b/pages/The-Basics.md index da7af36..26f5265 100644 --- a/pages/The-Basics.md +++ b/pages/The-Basics.md @@ -7,7 +7,7 @@ title: The Basics ## Comparison operators -Comparison operators are an often overlooked aspect of PHP, which can lead to many unexpected outcomes. One such +Comparison operators are an often overlooked aspect of PHP, which can lead to many unexpected outcomes. One such problem stems from strict comparisons (the comparison of booleans as integers). {% highlight php %} @@ -40,8 +40,8 @@ if (strpos('testing', 'test') !== false) { // true, as strict comparison was ### If statements -While using 'if/else' statements within a function or class, there is a common misconception that 'else' must be used -in conjunction to declare potential outcomes. However if the outcome is to define the return value, 'else' is not +While using 'if/else' statements within a function or class, there is a common misconception that 'else' must be used +in conjunction to declare potential outcomes. However if the outcome is to define the return value, 'else' is not necessary as 'return' will end the function, causing 'else' to become moot. {% highlight php %} @@ -104,7 +104,7 @@ function test($a) ## Global namespace -While using namespaces, you may find your code being executed in the wrong scope for internal methods. To fix this, +While using namespaces, you may find your code being executed in the wrong scope for internal methods. To fix this, define the method globally by using a backslash before the method. {% highlight php %} @@ -153,12 +153,12 @@ $a = 'Multi-line example' // concatenation operator (.) ### String types -String types are a constant feature within the PHP community, but hopefully this section will explain the +String types are a constant feature within the PHP community, but hopefully this section will explain the differences between the string types and their benefits/uses. #### Single quotes -Single quotes are the simplest way to define a string and are often the quickest. Their quickness stems from PHP not +Single quotes are the simplest way to define a string and are often the quickest. Their quickness stems from PHP not parsing the string (doesn't parse for variables). They're best suited for: - Strings that do not need to be parsed @@ -179,7 +179,7 @@ echo 'This is my string, look at how pretty it is.'; // no need to parse a si #### Double quotes -Double quotes are the Swiss army knife of strings, but are slower due to the string being parsed. They're best +Double quotes are the Swiss army knife of strings, but are slower due to the string being parsed. They're best suited for: - Escaped strings @@ -198,8 +198,8 @@ echo "phptherightway's is $adjective.\n I love learning $code!" // Instead of m // enables us to use a parsable string {% endhighlight %} -While using double quotes that contain variables, it's often the case that the variable will be touching another -character. This will result in PHP not parsing the variable due to the variable being camouflaged. To fix this problem, +While using double quotes that contain variables, it's often the case that the variable will be touching another +character. This will result in PHP not parsing the variable due to the variable being camouflaged. To fix this problem, wrap the variable within a pair of curly brackets. {% highlight php %} @@ -224,7 +224,7 @@ echo "I drank some juice made of {$juice[1]}s"; // $juice[1] will be parsed #### Nowdoc syntax -Nowdoc syntax was introduced in 5.3 and internally behaves the same way as single quotes except it's suited toward the +Nowdoc syntax was introduced in 5.3 and internally behaves the same way as single quotes except it's suited toward the use of multi-line strings without the need for concatenating. {% highlight php %} @@ -250,7 +250,7 @@ EOD; // closing 'EOD' must be on it's own line, and to th #### Heredoc syntax -Heredoc syntax internally behaves the same way as double quotes except it's suited toward the use of multi-line +Heredoc syntax internally behaves the same way as double quotes except it's suited toward the use of multi-line strings without the need for concatenating. {% highlight php %} @@ -278,7 +278,7 @@ EOD; // closing 'EOD' must be on it's own line, and to th ## Ternary operators -Ternary operators are a great way to condense code, but are often used in excess. While ternary operators can be +Ternary operators are a great way to condense code, but are often used in excess. While ternary operators can be stacked/nested, it is advised to use one per line for readability. {% highlight php %} @@ -305,18 +305,18 @@ echo ($a == 5) ? return true : return false; // this example will output an e ## Variable declarations -At times, coders attempt to make their code "cleaner" by declaring predefined variables with a different name. What -this does in reality is to double the memory consumption of said script. For the example below, let's say -$_GET\['about_me'\] contains 1MB worth of data, by copying the variable you've increased the scripts execution to 2MB. +At times, coders attempt to make their code "cleaner" by declaring predefined variables with a different name. What +this does in reality is to double the memory consumption of said script. For the example below, let's say +an example string of text contains 1MB worth of data, by copying the variable you've increased the scripts execution to 2MB. {% highlight php %}