To-Do List (Live Class 1)

PHP Array | Array Manipulation

• What is array?

  An array is a data structure used to store multiple elements of the same type under a single variable name.

  • *** Indexed Arrays
  • *** How to loop over Indexed Arrays
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  • *** Associative arrays
  • *** How to loop over Associative arrays
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  • *** Multidimensional indexed arrays
  • *** How to loop over Multidimensional indexed arrays
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  • *** Multidimensional Associative arrays
  • *** How to loop over Multidimensional Associative arrays
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• Build in method in array
  • * array_values() - Returns all the values from the array.
  • * array_keys() - Returns all the keys from the array.
  • * array_key_exists() - Checks if a key exists in an array.
  • * array_search() - Searches the array for a given value and returns the first corresponding key.
  • * array_flip() - Exchanges all keys with their associated values in an array.
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• Build in method in array
  • * count() - Counts the number of elements in an array.
  • * sizeof() - An alias of count(). Also counts the number of elements in an array.
  • * array_sum()- Computes the sum of values in an array.
  • * array_product() - Computes the product of values in an array.
  • * array_sum()- Computes the sum of values in an array.
  • * array_product() - Computes the product of values in an array.
  • * array_merge() - Merges one or more arrays.
  • * array_replace() - Replaces values from one array to another.
  • * sort() - Sorts an array in ascending order.
  • * rsort() - Sorts an array in descending order.
  • * array_unique() Removes duplicate values from an array.
  • * array_reverse() Returns an array with elements in reverse order.

To-Do List (Live Class 2)

PHP String | String Manipulation