PHP Common Functions Summary

PHP Common Functions Summary

string interception:

1, substr (' string to intercept ', ' starting from the first few characters ', ' to the end of the first few characters ');

* Capture English or digital

2, $cut = Explode (' to intercept a character in a string ', ' the string to intercept ');

//To intercept a string in a character array

substr ($cut [0], ' starting from the first few characters ', ' to the end of the first few characters ');

......

$SUBSTR ($cut [n], ' starting from the first few characters ', ' to the end of the first few characters ');

* Start interception from a character

string length:

1, strlen (' string ');

* Calculate the length of the string

Array and string conversions:

1,explode (' to intercept a character in a string ', ' the string to intercept ');

* String = array

2, implode (' array ');

* Number = string

Trade -Offs of decimal points:

1, round (' floating point number '); Rounded

Round (' floating point ', ' Number of decimal places '); Rounding (the number of digits set after the decimal point is retained)

* Rounding

2, Ceil (' floating point number '); As long as there are numbers in the decimal point,

* In a single rounding

The general functions of PHP are summarized above. Include aspects of the content, you want to be interested in PHP tutorial friends helpful.

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